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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package javax.swing;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dialog;
import java.awt.Dimension;
import java.awt.KeyboardFocusManager;
import java.awt.Frame;
import java.awt.Point;
import java.awt.HeadlessException;
import java.awt.Window;
import java.beans.JavaBean;
import java.beans.BeanProperty;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.awt.event.WindowListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.io.IOException;
import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Arrays;
import java.util.Vector;
import javax.swing.plaf.OptionPaneUI;
import javax.swing.event.InternalFrameEvent;
import javax.swing.event.InternalFrameAdapter;
import javax.accessibility.*;
import static javax.swing.ClientPropertyKey.PopupFactory_FORCE_HEAVYWEIGHT_POPUP;
import sun.awt.AWTAccessor;

JOptionPane makes it easy to pop up a standard dialog box that prompts users for a value or informs them of something. For information about using JOptionPane, see How to Make Dialogs, a section in The Java Tutorial.

While the JOptionPane class may appear complex because of the large number of methods, almost all uses of this class are one-line calls to one of the static showXxxDialog methods shown below:

Common JOptionPane method names and their descriptions
Method Name Description
showConfirmDialog Asks a confirming question, like yes/no/cancel.
showInputDialog Prompt for some input.
showMessageDialog Tell the user about something that has happened.
showOptionDialog The Grand Unification of the above three.
Each of these methods also comes in a showInternalXXX flavor, which uses an internal frame to hold the dialog box (see JInternalFrame). Multiple convenience methods have also been defined -- overloaded versions of the basic methods that use different parameter lists.

All dialogs are modal. Each showXxxDialog method blocks the caller until the user's interaction is complete.

Common dialog
icon message
input value
option buttons
The basic appearance of one of these dialog boxes is generally similar to the picture above, although the various look-and-feels are ultimately responsible for the final result. In particular, the look-and-feels will adjust the layout to accommodate the option pane's ComponentOrientation property.

Parameters:
The parameters to these methods follow consistent patterns:

parentComponent
Defines the Component that is to be the parent of this dialog box. It is used in two ways: the Frame that contains it is used as the Frame parent for the dialog box, and its screen coordinates are used in the placement of the dialog box. In general, the dialog box is placed just below the component. This parameter may be null, in which case a default Frame is used as the parent, and the dialog will be centered on the screen (depending on the L&F).
message
A descriptive message to be placed in the dialog box. In the most common usage, message is just a String or String constant. However, the type of this parameter is actually Object. Its interpretation depends on its type:
Object[]
An array of objects is interpreted as a series of messages (one per object) arranged in a vertical stack. The interpretation is recursive -- each object in the array is interpreted according to its type.
Component
The Component is displayed in the dialog.
Icon
The Icon is wrapped in a JLabel and displayed in the dialog.
others
The object is converted to a String by calling its toString method. The result is wrapped in a JLabel and displayed.
messageType
Defines the style of the message. The Look and Feel manager may lay out the dialog differently depending on this value, and will often provide a default icon. The possible values are:
  • ERROR_MESSAGE
  • INFORMATION_MESSAGE
  • WARNING_MESSAGE
  • QUESTION_MESSAGE
  • PLAIN_MESSAGE
optionType
Defines the set of option buttons that appear at the bottom of the dialog box:
  • DEFAULT_OPTION
  • YES_NO_OPTION
  • YES_NO_CANCEL_OPTION
  • OK_CANCEL_OPTION
You aren't limited to this set of option buttons. You can provide any buttons you want using the options parameter.
options
A more detailed description of the set of option buttons that will appear at the bottom of the dialog box. The usual value for the options parameter is an array of Strings. But the parameter type is an array of Objects. A button is created for each object depending on its type:
Component
The component is added to the button row directly.
Icon
A JButton is created with this as its label.
other
The Object is converted to a string using its toString method and the result is used to label a JButton.
icon
A decorative icon to be placed in the dialog box. A default value for this is determined by the messageType parameter.
title
The title for the dialog box.
initialValue
The default selection (input value).

When the selection is changed, setValue is invoked, which generates a PropertyChangeEvent.

If a JOptionPane has configured to all input setWantsInput the bound property JOptionPane.INPUT_VALUE_PROPERTY can also be listened to, to determine when the user has input or selected a value.

When one of the showXxxDialog methods returns an integer, the possible values are:

  • YES_OPTION
  • NO_OPTION
  • CANCEL_OPTION
  • OK_OPTION
  • CLOSED_OPTION
Examples:
Show an error dialog that displays the message, 'alert':
JOptionPane.showMessageDialog(null, "alert", "alert", JOptionPane.ERROR_MESSAGE);
Show an internal information dialog with the message, 'information':
JOptionPane.showInternalMessageDialog(frame, "information",
            "information", JOptionPane.INFORMATION_MESSAGE);
Show an information panel with the options yes/no and message 'choose one':
JOptionPane.showConfirmDialog(null,
            "choose one", "choose one", JOptionPane.YES_NO_OPTION);
Show an internal information dialog with the options yes/no/cancel and message 'please choose one' and title information:
JOptionPane.showInternalConfirmDialog(frame,
            "please choose one", "information",
            JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.INFORMATION_MESSAGE);
Show a warning dialog with the options OK, CANCEL, title 'Warning', and message 'Click OK to continue':
Object[] options = { "OK", "CANCEL" };
JOptionPane.showOptionDialog(null, "Click OK to continue", "Warning",
            JOptionPane.DEFAULT_OPTION, JOptionPane.WARNING_MESSAGE,
            null, options, options[0]);
Show a dialog asking the user to type in a String:
String inputValue = JOptionPane.showInputDialog("Please input a value");
Show a dialog asking the user to select a String:
Object[] possibleValues = { "First", "Second", "Third" };
Object selectedValue = JOptionPane.showInputDialog(null, "Choose one", "Input", JOptionPane.INFORMATION_MESSAGE, null, possibleValues, possibleValues[0]);
Direct Use:
To create and use an JOptionPane directly, the standard pattern is roughly as follows:
    JOptionPane pane = new JOptionPane(arguments);
    pane.set.Xxxx(...); // Configure
    JDialog dialog = pane.createDialog(parentComponent, title);
    dialog.show();
    Object selectedValue = pane.getValue();
    if(selectedValue == null)
      return CLOSED_OPTION;
    //If there is not an array of option buttons:
    if(options == null) {
      if(selectedValue instanceof Integer)
         return ((Integer)selectedValue).intValue();
      return CLOSED_OPTION;
    }
    //If there is an array of option buttons:
    for(int counter = 0, maxCounter = options.length;
       counter < maxCounter; counter++) {
       if(options[counter].equals(selectedValue))
       return counter;
    }
    return CLOSED_OPTION;

Warning: Swing is not thread safe. For more information see Swing's Threading Policy.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans has been added to the java.beans package. Please see XMLEncoder.

Author:James Gosling, Scott Violet
See Also:
Since:1.2
/** * <code>JOptionPane</code> makes it easy to pop up a standard dialog box that * prompts users for a value or informs them of something. * For information about using <code>JOptionPane</code>, see * <a href="https://docs.oracle.com/javase/tutorial/uiswing/components/dialog.html">How to Make Dialogs</a>, * a section in <em>The Java Tutorial</em>. * * <p> * * While the <code>JOptionPane</code> * class may appear complex because of the large number of methods, almost * all uses of this class are one-line calls to one of the static * <code>showXxxDialog</code> methods shown below: * * <table class="striped"> * <caption>Common JOptionPane method names and their descriptions</caption> * <thead> * <tr> * <th scope="col">Method Name * <th scope="col">Description * </thead> * <tbody> * <tr> * <th scope="row">showConfirmDialog * <td>Asks a confirming question, like yes/no/cancel.</td> * <tr> * <th scope="row">showInputDialog * <td>Prompt for some input. * <tr> * <th scope="row">showMessageDialog * <td>Tell the user about something that has happened. * <tr> * <th scope="row">showOptionDialog * <td>The Grand Unification of the above three. * </tbody> * </table> * * Each of these methods also comes in a <code>showInternalXXX</code> * flavor, which uses an internal frame to hold the dialog box (see * {@link JInternalFrame}). * Multiple convenience methods have also been defined -- overloaded * versions of the basic methods that use different parameter lists. * <p> * All dialogs are modal. Each <code>showXxxDialog</code> method blocks * the caller until the user's interaction is complete. * * <table class="borderless"> * <caption>Common dialog</caption> * <tr> * <td style="background-color:#FFe0d0" rowspan=2>icon</td> * <td style="background-color:#FFe0d0">message</td> * </tr> * <tr> * <td style="background-color:#FFe0d0">input value</td> * </tr> * <tr> * <td style="background-color:#FFe0d0" colspan=2>option buttons</td> * </tr> * </table> * * The basic appearance of one of these dialog boxes is generally * similar to the picture above, although the various * look-and-feels are * ultimately responsible for the final result. In particular, the * look-and-feels will adjust the layout to accommodate the option pane's * <code>ComponentOrientation</code> property. * <br style="clear:all"> * <p> * <b>Parameters:</b><br> * The parameters to these methods follow consistent patterns: * <blockquote> * <dl> * <dt>parentComponent<dd> * Defines the <code>Component</code> that is to be the parent of this * dialog box. * It is used in two ways: the <code>Frame</code> that contains * it is used as the <code>Frame</code> * parent for the dialog box, and its screen coordinates are used in * the placement of the dialog box. In general, the dialog box is placed * just below the component. This parameter may be <code>null</code>, * in which case a default <code>Frame</code> is used as the parent, * and the dialog will be * centered on the screen (depending on the {@literal L&F}). * <dt>message<dd> * A descriptive message to be placed in the dialog box. * In the most common usage, message is just a <code>String</code> or * <code>String</code> constant. * However, the type of this parameter is actually <code>Object</code>. Its * interpretation depends on its type: * <dl> * <dt>Object[]<dd>An array of objects is interpreted as a series of * messages (one per object) arranged in a vertical stack. * The interpretation is recursive -- each object in the * array is interpreted according to its type. * <dt>Component<dd>The <code>Component</code> is displayed in the dialog. * <dt>Icon<dd>The <code>Icon</code> is wrapped in a <code>JLabel</code> * and displayed in the dialog. * <dt>others<dd>The object is converted to a <code>String</code> by calling * its <code>toString</code> method. The result is wrapped in a * <code>JLabel</code> and displayed. * </dl> * <dt>messageType<dd>Defines the style of the message. The Look and Feel * manager may lay out the dialog differently depending on this value, and * will often provide a default icon. The possible values are: * <ul> * <li><code>ERROR_MESSAGE</code> * <li><code>INFORMATION_MESSAGE</code> * <li><code>WARNING_MESSAGE</code> * <li><code>QUESTION_MESSAGE</code> * <li><code>PLAIN_MESSAGE</code> * </ul> * <dt>optionType<dd>Defines the set of option buttons that appear at * the bottom of the dialog box: * <ul> * <li><code>DEFAULT_OPTION</code> * <li><code>YES_NO_OPTION</code> * <li><code>YES_NO_CANCEL_OPTION</code> * <li><code>OK_CANCEL_OPTION</code> * </ul> * You aren't limited to this set of option buttons. You can provide any * buttons you want using the options parameter. * <dt>options<dd>A more detailed description of the set of option buttons * that will appear at the bottom of the dialog box. * The usual value for the options parameter is an array of * <code>String</code>s. But * the parameter type is an array of <code>Objects</code>. * A button is created for each object depending on its type: * <dl> * <dt>Component<dd>The component is added to the button row directly. * <dt>Icon<dd>A <code>JButton</code> is created with this as its label. * <dt>other<dd>The <code>Object</code> is converted to a string using its * <code>toString</code> method and the result is used to * label a <code>JButton</code>. * </dl> * <dt>icon<dd>A decorative icon to be placed in the dialog box. A default * value for this is determined by the <code>messageType</code> parameter. * <dt>title<dd>The title for the dialog box. * <dt>initialValue<dd>The default selection (input value). * </dl> * </blockquote> * <p> * When the selection is changed, <code>setValue</code> is invoked, * which generates a <code>PropertyChangeEvent</code>. * <p> * If a <code>JOptionPane</code> has configured to all input * <code>setWantsInput</code> * the bound property <code>JOptionPane.INPUT_VALUE_PROPERTY</code> * can also be listened * to, to determine when the user has input or selected a value. * <p> * When one of the <code>showXxxDialog</code> methods returns an integer, * the possible values are: * <ul> * <li><code>YES_OPTION</code> * <li><code>NO_OPTION</code> * <li><code>CANCEL_OPTION</code> * <li><code>OK_OPTION</code> * <li><code>CLOSED_OPTION</code> * </ul> * <b>Examples:</b> * <dl> * <dt>Show an error dialog that displays the message, 'alert': * <dd><code> * JOptionPane.showMessageDialog(null, "alert", "alert", JOptionPane.ERROR_MESSAGE); * </code> * <dt>Show an internal information dialog with the message, 'information': * <dd><pre> * JOptionPane.showInternalMessageDialog(frame, "information", * "information", JOptionPane.INFORMATION_MESSAGE); * </pre> * <dt>Show an information panel with the options yes/no and message 'choose one': * <dd><pre>JOptionPane.showConfirmDialog(null, * "choose one", "choose one", JOptionPane.YES_NO_OPTION); * </pre> * <dt>Show an internal information dialog with the options yes/no/cancel and * message 'please choose one' and title information: * <dd><pre>JOptionPane.showInternalConfirmDialog(frame, * "please choose one", "information", * JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.INFORMATION_MESSAGE); * </pre> * <dt>Show a warning dialog with the options OK, CANCEL, title 'Warning', and * message 'Click OK to continue': * <dd><pre> * Object[] options = { "OK", "CANCEL" }; * JOptionPane.showOptionDialog(null, "Click OK to continue", "Warning", * JOptionPane.DEFAULT_OPTION, JOptionPane.WARNING_MESSAGE, * null, options, options[0]); * </pre> * <dt>Show a dialog asking the user to type in a String: * <dd><code> * String inputValue = JOptionPane.showInputDialog("Please input a value"); * </code> * <dt>Show a dialog asking the user to select a String: * <dd><pre> * Object[] possibleValues = { "First", "Second", "Third" };<br> * Object selectedValue = JOptionPane.showInputDialog(null, * "Choose one", "Input", * JOptionPane.INFORMATION_MESSAGE, null, * possibleValues, possibleValues[0]); * </pre> * </dl> * <b>Direct Use:</b><br> * To create and use an <code>JOptionPane</code> directly, the * standard pattern is roughly as follows: * <pre> * JOptionPane pane = new JOptionPane(<i>arguments</i>); * pane.set<i>.Xxxx(...); // Configure</i> * JDialog dialog = pane.createDialog(<i>parentComponent, title</i>); * dialog.show(); * Object selectedValue = pane.getValue(); * if(selectedValue == null) * return CLOSED_OPTION; * <i>//If there is <b>not</b> an array of option buttons:</i> * if(options == null) { * if(selectedValue instanceof Integer) * return ((Integer)selectedValue).intValue(); * return CLOSED_OPTION; * } * <i>//If there is an array of option buttons:</i> * for(int counter = 0, maxCounter = options.length; * counter &lt; maxCounter; counter++) { * if(options[counter].equals(selectedValue)) * return counter; * } * return CLOSED_OPTION; * </pre> * <p> * <strong>Warning:</strong> Swing is not thread safe. For more * information see <a * href="package-summary.html#threading">Swing's Threading * Policy</a>. * <p> * <strong>Warning:</strong> * Serialized objects of this class will not be compatible with * future Swing releases. The current serialization support is * appropriate for short term storage or RMI between applications running * the same version of Swing. As of 1.4, support for long term storage * of all JavaBeans * has been added to the <code>java.beans</code> package. * Please see {@link java.beans.XMLEncoder}. * * @see JInternalFrame * * @author James Gosling * @author Scott Violet * @since 1.2 */
@JavaBean(defaultProperty = "UI", description = "A component which implements standard dialog box controls.") @SwingContainer @SuppressWarnings("serial") // Same-version serialization only public class JOptionPane extends JComponent implements Accessible {
See Also:
/** * @see #getUIClassID * @see #readObject */
private static final String uiClassID = "OptionPaneUI";
Indicates that the user has not yet selected a value.
/** * Indicates that the user has not yet selected a value. */
public static final Object UNINITIALIZED_VALUE = "uninitializedValue"; // // Option types //
Type meaning Look and Feel should not supply any options -- only use the options from the JOptionPane.
/** * Type meaning Look and Feel should not supply any options -- only * use the options from the <code>JOptionPane</code>. */
public static final int DEFAULT_OPTION = -1;
Type used for showConfirmDialog.
/** Type used for <code>showConfirmDialog</code>. */
public static final int YES_NO_OPTION = 0;
Type used for showConfirmDialog.
/** Type used for <code>showConfirmDialog</code>. */
public static final int YES_NO_CANCEL_OPTION = 1;
Type used for showConfirmDialog.
/** Type used for <code>showConfirmDialog</code>. */
public static final int OK_CANCEL_OPTION = 2; // // Return values. //
Return value from class method if YES is chosen.
/** Return value from class method if YES is chosen. */
public static final int YES_OPTION = 0;
Return value from class method if NO is chosen.
/** Return value from class method if NO is chosen. */
public static final int NO_OPTION = 1;
Return value from class method if CANCEL is chosen.
/** Return value from class method if CANCEL is chosen. */
public static final int CANCEL_OPTION = 2;
Return value form class method if OK is chosen.
/** Return value form class method if OK is chosen. */
public static final int OK_OPTION = 0;
Return value from class method if user closes window without selecting anything, more than likely this should be treated as either a CANCEL_OPTION or NO_OPTION.
/** Return value from class method if user closes window without selecting * anything, more than likely this should be treated as either a * <code>CANCEL_OPTION</code> or <code>NO_OPTION</code>. */
public static final int CLOSED_OPTION = -1; // // Message types. Used by the UI to determine what icon to display, // and possibly what behavior to give based on the type. //
Used for error messages.
/** Used for error messages. */
public static final int ERROR_MESSAGE = 0;
Used for information messages.
/** Used for information messages. */
public static final int INFORMATION_MESSAGE = 1;
Used for warning messages.
/** Used for warning messages. */
public static final int WARNING_MESSAGE = 2;
Used for questions.
/** Used for questions. */
public static final int QUESTION_MESSAGE = 3;
No icon is used.
/** No icon is used. */
public static final int PLAIN_MESSAGE = -1;
Bound property name for icon.
/** Bound property name for <code>icon</code>. */
public static final String ICON_PROPERTY = "icon";
Bound property name for message.
/** Bound property name for <code>message</code>. */
public static final String MESSAGE_PROPERTY = "message";
Bound property name for value.
/** Bound property name for <code>value</code>. */
public static final String VALUE_PROPERTY = "value";
Bound property name for option.
/** Bound property name for <code>option</code>. */
public static final String OPTIONS_PROPERTY = "options";
Bound property name for initialValue.
/** Bound property name for <code>initialValue</code>. */
public static final String INITIAL_VALUE_PROPERTY = "initialValue";
Bound property name for type.
/** Bound property name for <code>type</code>. */
public static final String MESSAGE_TYPE_PROPERTY = "messageType";
Bound property name for optionType.
/** Bound property name for <code>optionType</code>. */
public static final String OPTION_TYPE_PROPERTY = "optionType";
Bound property name for selectionValues.
/** Bound property name for <code>selectionValues</code>. */
public static final String SELECTION_VALUES_PROPERTY = "selectionValues";
Bound property name for initialSelectionValue.
/** Bound property name for <code>initialSelectionValue</code>. */
public static final String INITIAL_SELECTION_VALUE_PROPERTY = "initialSelectionValue";
Bound property name for inputValue.
/** Bound property name for <code>inputValue</code>. */
public static final String INPUT_VALUE_PROPERTY = "inputValue";
Bound property name for wantsInput.
/** Bound property name for <code>wantsInput</code>. */
public static final String WANTS_INPUT_PROPERTY = "wantsInput";
Icon used in pane.
/** Icon used in pane. */
protected transient Icon icon;
Message to display.
/** Message to display. */
protected transient Object message;
Options to display to the user.
/** Options to display to the user. */
protected transient Object[] options;
Value that should be initially selected in options.
/** Value that should be initially selected in <code>options</code>. */
protected transient Object initialValue;
Message type.
/** Message type. */
protected int messageType;
Option type, one of DEFAULT_OPTION, YES_NO_OPTION, YES_NO_CANCEL_OPTION or OK_CANCEL_OPTION.
/** * Option type, one of <code>DEFAULT_OPTION</code>, * <code>YES_NO_OPTION</code>, * <code>YES_NO_CANCEL_OPTION</code> or * <code>OK_CANCEL_OPTION</code>. */
protected int optionType;
Currently selected value, will be a valid option, or UNINITIALIZED_VALUE or null.
/** Currently selected value, will be a valid option, or * <code>UNINITIALIZED_VALUE</code> or <code>null</code>. */
protected transient Object value;
Array of values the user can choose from. Look and feel will provide the UI component to choose this from.
/** Array of values the user can choose from. Look and feel will * provide the UI component to choose this from. */
protected transient Object[] selectionValues;
Value the user has input.
/** Value the user has input. */
protected transient Object inputValue;
Initial value to select in selectionValues.
/** Initial value to select in <code>selectionValues</code>. */
protected transient Object initialSelectionValue;
If true, a UI widget will be provided to the user to get input.
/** If true, a UI widget will be provided to the user to get input. */
protected boolean wantsInput;
Shows a question-message dialog requesting input from the user. The dialog uses the default frame, which usually means it is centered on the screen.
Params:
  • message – the Object to display
Throws:
See Also:
Returns:user's input
/** * Shows a question-message dialog requesting input from the user. The * dialog uses the default frame, which usually means it is centered on * the screen. * * @param message the <code>Object</code> to display * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @return user's input * @see java.awt.GraphicsEnvironment#isHeadless */
public static String showInputDialog(Object message) throws HeadlessException { return showInputDialog(null, message); }
Shows a question-message dialog requesting input from the user, with the input value initialized to initialSelectionValue. The dialog uses the default frame, which usually means it is centered on the screen.
Params:
  • message – the Object to display
  • initialSelectionValue – the value used to initialize the input field
Returns:user's input
Since:1.4
/** * Shows a question-message dialog requesting input from the user, with * the input value initialized to <code>initialSelectionValue</code>. The * dialog uses the default frame, which usually means it is centered on * the screen. * * @param message the <code>Object</code> to display * @param initialSelectionValue the value used to initialize the input * field * @return user's input * @since 1.4 */
public static String showInputDialog(Object message, Object initialSelectionValue) { return showInputDialog(null, message, initialSelectionValue); }
Shows a question-message dialog requesting input from the user parented to parentComponent. The dialog is displayed on top of the Component's frame, and is usually positioned below the Component.
Params:
  • parentComponent – the parent Component for the dialog
  • message – the Object to display
Throws:
See Also:
Returns:user's input
/** * Shows a question-message dialog requesting input from the user * parented to <code>parentComponent</code>. * The dialog is displayed on top of the <code>Component</code>'s * frame, and is usually positioned below the <code>Component</code>. * * @param parentComponent the parent <code>Component</code> for the * dialog * @param message the <code>Object</code> to display * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @return user's input * @see java.awt.GraphicsEnvironment#isHeadless */
public static String showInputDialog(Component parentComponent, Object message) throws HeadlessException { return showInputDialog(parentComponent, message, UIManager.getString( "OptionPane.inputDialogTitle", parentComponent), QUESTION_MESSAGE); }
Shows a question-message dialog requesting input from the user and parented to parentComponent. The input value will be initialized to initialSelectionValue. The dialog is displayed on top of the Component's frame, and is usually positioned below the Component.
Params:
  • parentComponent – the parent Component for the dialog
  • message – the Object to display
  • initialSelectionValue – the value used to initialize the input field
Returns:user's input
Since:1.4
/** * Shows a question-message dialog requesting input from the user and * parented to <code>parentComponent</code>. The input value will be * initialized to <code>initialSelectionValue</code>. * The dialog is displayed on top of the <code>Component</code>'s * frame, and is usually positioned below the <code>Component</code>. * * @param parentComponent the parent <code>Component</code> for the * dialog * @param message the <code>Object</code> to display * @param initialSelectionValue the value used to initialize the input * field * @return user's input * @since 1.4 */
public static String showInputDialog(Component parentComponent, Object message, Object initialSelectionValue) { return (String)showInputDialog(parentComponent, message, UIManager.getString("OptionPane.inputDialogTitle", parentComponent), QUESTION_MESSAGE, null, null, initialSelectionValue); }
Shows a dialog requesting input from the user parented to parentComponent with the dialog having the title title and message type messageType.
Params:
  • parentComponent – the parent Component for the dialog
  • message – the Object to display
  • title – the String to display in the dialog title bar
  • messageType – the type of message that is to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
Throws:
See Also:
Returns:user's input
/** * Shows a dialog requesting input from the user parented to * <code>parentComponent</code> with the dialog having the title * <code>title</code> and message type <code>messageType</code>. * * @param parentComponent the parent <code>Component</code> for the * dialog * @param message the <code>Object</code> to display * @param title the <code>String</code> to display in the dialog * title bar * @param messageType the type of message that is to be displayed: * <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @return user's input * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless */
public static String showInputDialog(Component parentComponent, Object message, String title, int messageType) throws HeadlessException { return (String)showInputDialog(parentComponent, message, title, messageType, null, null, null); }
Prompts the user for input in a blocking dialog where the initial selection, possible selections, and all other options can be specified. The user will able to choose from selectionValues, where null implies the user can input whatever they wish, usually by means of a JTextField. initialSelectionValue is the initial value to prompt the user with. It is up to the UI to decide how best to represent the selectionValues, but usually a JComboBox, JList, or JTextField will be used.
Params:
  • parentComponent – the parent Component for the dialog
  • message – the Object to display
  • title – the String to display in the dialog title bar
  • messageType – the type of message to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
  • icon – the Icon image to display
  • selectionValues – an array of Objects that gives the possible selections
  • initialSelectionValue – the value used to initialize the input field
Throws:
See Also:
Returns:user's input, or null meaning the user canceled the input
/** * Prompts the user for input in a blocking dialog where the * initial selection, possible selections, and all other options can * be specified. The user will able to choose from * <code>selectionValues</code>, where <code>null</code> implies the * user can input * whatever they wish, usually by means of a <code>JTextField</code>. * <code>initialSelectionValue</code> is the initial value to prompt * the user with. It is up to the UI to decide how best to represent * the <code>selectionValues</code>, but usually a * <code>JComboBox</code>, <code>JList</code>, or * <code>JTextField</code> will be used. * * @param parentComponent the parent <code>Component</code> for the * dialog * @param message the <code>Object</code> to display * @param title the <code>String</code> to display in the * dialog title bar * @param messageType the type of message to be displayed: * <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @param icon the <code>Icon</code> image to display * @param selectionValues an array of <code>Object</code>s that * gives the possible selections * @param initialSelectionValue the value used to initialize the input * field * @return user's input, or <code>null</code> meaning the user * canceled the input * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless */
@SuppressWarnings("deprecation") public static Object showInputDialog(Component parentComponent, Object message, String title, int messageType, Icon icon, Object[] selectionValues, Object initialSelectionValue) throws HeadlessException { JOptionPane pane = new JOptionPane(message, messageType, OK_CANCEL_OPTION, icon, null, null); pane.setWantsInput(true); pane.setSelectionValues(selectionValues); pane.setInitialSelectionValue(initialSelectionValue); pane.setComponentOrientation(((parentComponent == null) ? getRootFrame() : parentComponent).getComponentOrientation()); int style = styleFromMessageType(messageType); JDialog dialog = pane.createDialog(parentComponent, title, style); pane.selectInitialValue(); dialog.show(); dialog.dispose(); Object value = pane.getInputValue(); if (value == UNINITIALIZED_VALUE) { return null; } return value; }
Brings up an information-message dialog titled "Message".
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the Object to display
Throws:
See Also:
/** * Brings up an information-message dialog titled "Message". * * @param parentComponent determines the <code>Frame</code> in * which the dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a default <code>Frame</code> is used * @param message the <code>Object</code> to display * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless */
public static void showMessageDialog(Component parentComponent, Object message) throws HeadlessException { showMessageDialog(parentComponent, message, UIManager.getString( "OptionPane.messageDialogTitle", parentComponent), INFORMATION_MESSAGE); }
Brings up a dialog that displays a message using a default icon determined by the messageType parameter.
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the Object to display
  • title – the title string for the dialog
  • messageType – the type of message to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
Throws:
See Also:
/** * Brings up a dialog that displays a message using a default * icon determined by the <code>messageType</code> parameter. * * @param parentComponent determines the <code>Frame</code> * in which the dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a default <code>Frame</code> is used * @param message the <code>Object</code> to display * @param title the title string for the dialog * @param messageType the type of message to be displayed: * <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless */
public static void showMessageDialog(Component parentComponent, Object message, String title, int messageType) throws HeadlessException { showMessageDialog(parentComponent, message, title, messageType, null); }
Brings up a dialog displaying a message, specifying all parameters.
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the Object to display
  • title – the title string for the dialog
  • messageType – the type of message to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
  • icon – an icon to display in the dialog that helps the user identify the kind of message that is being displayed
Throws:
See Also:
/** * Brings up a dialog displaying a message, specifying all parameters. * * @param parentComponent determines the <code>Frame</code> in which the * dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a * default <code>Frame</code> is used * @param message the <code>Object</code> to display * @param title the title string for the dialog * @param messageType the type of message to be displayed: * <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @param icon an icon to display in the dialog that helps the user * identify the kind of message that is being displayed * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless */
public static void showMessageDialog(Component parentComponent, Object message, String title, int messageType, Icon icon) throws HeadlessException { showOptionDialog(parentComponent, message, title, DEFAULT_OPTION, messageType, icon, null, null); }
Brings up a dialog with the options Yes, No and Cancel; with the title, Select an Option.
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the Object to display
Throws:
See Also:
Returns:an integer indicating the option selected by the user
/** * Brings up a dialog with the options <i>Yes</i>, * <i>No</i> and <i>Cancel</i>; with the * title, <b>Select an Option</b>. * * @param parentComponent determines the <code>Frame</code> in which the * dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a * default <code>Frame</code> is used * @param message the <code>Object</code> to display * @return an integer indicating the option selected by the user * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless */
public static int showConfirmDialog(Component parentComponent, Object message) throws HeadlessException { return showConfirmDialog(parentComponent, message, UIManager.getString("OptionPane.titleText"), YES_NO_CANCEL_OPTION); }
Brings up a dialog where the number of choices is determined by the optionType parameter.
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the Object to display
  • title – the title string for the dialog
  • optionType – an int designating the options available on the dialog: YES_NO_OPTION, YES_NO_CANCEL_OPTION, or OK_CANCEL_OPTION
Throws:
See Also:
Returns:an int indicating the option selected by the user
/** * Brings up a dialog where the number of choices is determined * by the <code>optionType</code> parameter. * * @param parentComponent determines the <code>Frame</code> in which the * dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a * default <code>Frame</code> is used * @param message the <code>Object</code> to display * @param title the title string for the dialog * @param optionType an int designating the options available on the dialog: * <code>YES_NO_OPTION</code>, * <code>YES_NO_CANCEL_OPTION</code>, * or <code>OK_CANCEL_OPTION</code> * @return an int indicating the option selected by the user * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless */
public static int showConfirmDialog(Component parentComponent, Object message, String title, int optionType) throws HeadlessException { return showConfirmDialog(parentComponent, message, title, optionType, QUESTION_MESSAGE); }
Brings up a dialog where the number of choices is determined by the optionType parameter, where the messageType parameter determines the icon to display. The messageType parameter is primarily used to supply a default icon from the Look and Feel.
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used.
  • message – the Object to display
  • title – the title string for the dialog
  • optionType – an integer designating the options available on the dialog: YES_NO_OPTION, YES_NO_CANCEL_OPTION, or OK_CANCEL_OPTION
  • messageType – an integer designating the kind of message this is; primarily used to determine the icon from the pluggable Look and Feel: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
Throws:
See Also:
Returns:an integer indicating the option selected by the user
/** * Brings up a dialog where the number of choices is determined * by the <code>optionType</code> parameter, where the * <code>messageType</code> * parameter determines the icon to display. * The <code>messageType</code> parameter is primarily used to supply * a default icon from the Look and Feel. * * @param parentComponent determines the <code>Frame</code> in * which the dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a * default <code>Frame</code> is used. * @param message the <code>Object</code> to display * @param title the title string for the dialog * @param optionType an integer designating the options available * on the dialog: <code>YES_NO_OPTION</code>, * <code>YES_NO_CANCEL_OPTION</code>, * or <code>OK_CANCEL_OPTION</code> * @param messageType an integer designating the kind of message this is; * primarily used to determine the icon from the pluggable * Look and Feel: <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @return an integer indicating the option selected by the user * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless */
public static int showConfirmDialog(Component parentComponent, Object message, String title, int optionType, int messageType) throws HeadlessException { return showConfirmDialog(parentComponent, message, title, optionType, messageType, null); }
Brings up a dialog with a specified icon, where the number of choices is determined by the optionType parameter. The messageType parameter is primarily used to supply a default icon from the look and feel.
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the Object to display
  • title – the title string for the dialog
  • optionType – an int designating the options available on the dialog: YES_NO_OPTION, YES_NO_CANCEL_OPTION, or OK_CANCEL_OPTION
  • messageType – an int designating the kind of message this is, primarily used to determine the icon from the pluggable Look and Feel: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
  • icon – the icon to display in the dialog
Throws:
See Also:
Returns:an int indicating the option selected by the user
/** * Brings up a dialog with a specified icon, where the number of * choices is determined by the <code>optionType</code> parameter. * The <code>messageType</code> parameter is primarily used to supply * a default icon from the look and feel. * * @param parentComponent determines the <code>Frame</code> in which the * dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a * default <code>Frame</code> is used * @param message the Object to display * @param title the title string for the dialog * @param optionType an int designating the options available on the dialog: * <code>YES_NO_OPTION</code>, * <code>YES_NO_CANCEL_OPTION</code>, * or <code>OK_CANCEL_OPTION</code> * @param messageType an int designating the kind of message this is, * primarily used to determine the icon from the pluggable * Look and Feel: <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @param icon the icon to display in the dialog * @return an int indicating the option selected by the user * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless */
public static int showConfirmDialog(Component parentComponent, Object message, String title, int optionType, int messageType, Icon icon) throws HeadlessException { return showOptionDialog(parentComponent, message, title, optionType, messageType, icon, null, null); }
Brings up a dialog with a specified icon, where the initial choice is determined by the initialValue parameter and the number of choices is determined by the optionType parameter.

If optionType is YES_NO_OPTION, or YES_NO_CANCEL_OPTION and the options parameter is null, then the options are supplied by the look and feel.

The messageType parameter is primarily used to supply a default icon from the look and feel.

Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the Object to display
  • title – the title string for the dialog
  • optionType – an integer designating the options available on the dialog: DEFAULT_OPTION, YES_NO_OPTION, YES_NO_CANCEL_OPTION, or OK_CANCEL_OPTION
  • messageType – an integer designating the kind of message this is, primarily used to determine the icon from the pluggable Look and Feel: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
  • icon – the icon to display in the dialog
  • options – an array of objects indicating the possible choices the user can make; if the objects are components, they are rendered properly; non-String objects are rendered using their toString methods; if this parameter is null, the options are determined by the Look and Feel
  • initialValue – the object that represents the default selection for the dialog; only meaningful if options is used; can be null
Throws:
See Also:
Returns:an integer indicating the option chosen by the user, or CLOSED_OPTION if the user closed the dialog
/** * Brings up a dialog with a specified icon, where the initial * choice is determined by the <code>initialValue</code> parameter and * the number of choices is determined by the <code>optionType</code> * parameter. * <p> * If <code>optionType</code> is <code>YES_NO_OPTION</code>, * or <code>YES_NO_CANCEL_OPTION</code> * and the <code>options</code> parameter is <code>null</code>, * then the options are * supplied by the look and feel. * <p> * The <code>messageType</code> parameter is primarily used to supply * a default icon from the look and feel. * * @param parentComponent determines the <code>Frame</code> * in which the dialog is displayed; if * <code>null</code>, or if the * <code>parentComponent</code> has no * <code>Frame</code>, a * default <code>Frame</code> is used * @param message the <code>Object</code> to display * @param title the title string for the dialog * @param optionType an integer designating the options available on the * dialog: <code>DEFAULT_OPTION</code>, * <code>YES_NO_OPTION</code>, * <code>YES_NO_CANCEL_OPTION</code>, * or <code>OK_CANCEL_OPTION</code> * @param messageType an integer designating the kind of message this is, * primarily used to determine the icon from the * pluggable Look and Feel: <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @param icon the icon to display in the dialog * @param options an array of objects indicating the possible choices * the user can make; if the objects are components, they * are rendered properly; non-<code>String</code> * objects are * rendered using their <code>toString</code> methods; * if this parameter is <code>null</code>, * the options are determined by the Look and Feel * @param initialValue the object that represents the default selection * for the dialog; only meaningful if <code>options</code> * is used; can be <code>null</code> * @return an integer indicating the option chosen by the user, * or <code>CLOSED_OPTION</code> if the user closed * the dialog * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless */
@SuppressWarnings("deprecation") public static int showOptionDialog(Component parentComponent, Object message, String title, int optionType, int messageType, Icon icon, Object[] options, Object initialValue) throws HeadlessException { JOptionPane pane = new JOptionPane(message, messageType, optionType, icon, options, initialValue); pane.setInitialValue(initialValue); pane.setComponentOrientation(((parentComponent == null) ? getRootFrame() : parentComponent).getComponentOrientation()); int style = styleFromMessageType(messageType); JDialog dialog = pane.createDialog(parentComponent, title, style); pane.selectInitialValue(); dialog.show(); dialog.dispose(); Object selectedValue = pane.getValue(); if(selectedValue == null) return CLOSED_OPTION; if(options == null) { if(selectedValue instanceof Integer) return ((Integer)selectedValue).intValue(); return CLOSED_OPTION; } for(int counter = 0, maxCounter = options.length; counter < maxCounter; counter++) { if(options[counter].equals(selectedValue)) return counter; } return CLOSED_OPTION; }
Creates and returns a new JDialog wrapping this centered on the parentComponent in the parentComponent's frame. title is the title of the returned dialog. The returned JDialog will not be resizable by the user, however programs can invoke setResizable on the JDialog instance to change this property. The returned JDialog will be set up such that once it is closed, or the user clicks on one of the buttons, the optionpane's value property will be set accordingly and the dialog will be closed. Each time the dialog is made visible, it will reset the option pane's value property to JOptionPane.UNINITIALIZED_VALUE to ensure the user's subsequent action closes the dialog properly.
Params:
  • parentComponent – determines the frame in which the dialog is displayed; if the parentComponent has no Frame, a default Frame is used
  • title – the title string for the dialog
Throws:
See Also:
Returns:a new JDialog containing this instance
/** * Creates and returns a new <code>JDialog</code> wrapping * <code>this</code> centered on the <code>parentComponent</code> * in the <code>parentComponent</code>'s frame. * <code>title</code> is the title of the returned dialog. * The returned <code>JDialog</code> will not be resizable by the * user, however programs can invoke <code>setResizable</code> on * the <code>JDialog</code> instance to change this property. * The returned <code>JDialog</code> will be set up such that * once it is closed, or the user clicks on one of the buttons, * the optionpane's value property will be set accordingly and * the dialog will be closed. Each time the dialog is made visible, * it will reset the option pane's value property to * <code>JOptionPane.UNINITIALIZED_VALUE</code> to ensure the * user's subsequent action closes the dialog properly. * * @param parentComponent determines the frame in which the dialog * is displayed; if the <code>parentComponent</code> has * no <code>Frame</code>, a default <code>Frame</code> is used * @param title the title string for the dialog * @return a new <code>JDialog</code> containing this instance * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless */
public JDialog createDialog(Component parentComponent, String title) throws HeadlessException { int style = styleFromMessageType(getMessageType()); return createDialog(parentComponent, title, style); }
Creates and returns a new parentless JDialog with the specified title. The returned JDialog will not be resizable by the user, however programs can invoke setResizable on the JDialog instance to change this property. The returned JDialog will be set up such that once it is closed, or the user clicks on one of the buttons, the optionpane's value property will be set accordingly and the dialog will be closed. Each time the dialog is made visible, it will reset the option pane's value property to JOptionPane.UNINITIALIZED_VALUE to ensure the user's subsequent action closes the dialog properly.
Params:
  • title – the title string for the dialog
Throws:
See Also:
Returns:a new JDialog containing this instance
Since:1.6
/** * Creates and returns a new parentless <code>JDialog</code> * with the specified title. * The returned <code>JDialog</code> will not be resizable by the * user, however programs can invoke <code>setResizable</code> on * the <code>JDialog</code> instance to change this property. * The returned <code>JDialog</code> will be set up such that * once it is closed, or the user clicks on one of the buttons, * the optionpane's value property will be set accordingly and * the dialog will be closed. Each time the dialog is made visible, * it will reset the option pane's value property to * <code>JOptionPane.UNINITIALIZED_VALUE</code> to ensure the * user's subsequent action closes the dialog properly. * * @param title the title string for the dialog * @return a new <code>JDialog</code> containing this instance * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless * @since 1.6 */
public JDialog createDialog(String title) throws HeadlessException { int style = styleFromMessageType(getMessageType()); JDialog dialog = new JDialog((Dialog) null, title, true); initDialog(dialog, style, null); return dialog; } private JDialog createDialog(Component parentComponent, String title, int style) throws HeadlessException { final JDialog dialog; Window window = JOptionPane.getWindowForComponent(parentComponent); if (window instanceof Frame) { dialog = new JDialog((Frame)window, title, true); } else { dialog = new JDialog((Dialog)window, title, true); } if (window instanceof SwingUtilities.SharedOwnerFrame) { WindowListener ownerShutdownListener = SwingUtilities.getSharedOwnerFrameShutdownListener(); dialog.addWindowListener(ownerShutdownListener); } initDialog(dialog, style, parentComponent); return dialog; } private void initDialog(final JDialog dialog, int style, Component parentComponent) { dialog.setComponentOrientation(this.getComponentOrientation()); Container contentPane = dialog.getContentPane(); contentPane.setLayout(new BorderLayout()); contentPane.add(this, BorderLayout.CENTER); dialog.setResizable(false); if (JDialog.isDefaultLookAndFeelDecorated()) { boolean supportsWindowDecorations = UIManager.getLookAndFeel().getSupportsWindowDecorations(); if (supportsWindowDecorations) { dialog.setUndecorated(true); getRootPane().setWindowDecorationStyle(style); } } dialog.pack(); dialog.setLocationRelativeTo(parentComponent); final PropertyChangeListener listener = new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent event) { // Let the defaultCloseOperation handle the closing // if the user closed the window without selecting a button // (newValue = null in that case). Otherwise, close the dialog. if (dialog.isVisible() && event.getSource() == JOptionPane.this && (event.getPropertyName().equals(VALUE_PROPERTY)) && event.getNewValue() != null && event.getNewValue() != JOptionPane.UNINITIALIZED_VALUE) { dialog.setVisible(false); } } }; WindowAdapter adapter = new WindowAdapter() { private boolean gotFocus = false; public void windowClosing(WindowEvent we) { setValue(null); } public void windowClosed(WindowEvent e) { removePropertyChangeListener(listener); dialog.getContentPane().removeAll(); } public void windowGainedFocus(WindowEvent we) { // Once window gets focus, set initial focus if (!gotFocus) { selectInitialValue(); gotFocus = true; } } }; dialog.addWindowListener(adapter); dialog.addWindowFocusListener(adapter); dialog.addComponentListener(new ComponentAdapter() { public void componentShown(ComponentEvent ce) { // reset value to ensure closing works properly setValue(JOptionPane.UNINITIALIZED_VALUE); } }); addPropertyChangeListener(listener); }
Brings up an internal confirmation dialog panel. The dialog is a information-message dialog titled "Message".
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the object to display
/** * Brings up an internal confirmation dialog panel. The dialog * is a information-message dialog titled "Message". * * @param parentComponent determines the <code>Frame</code> * in which the dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a default <code>Frame</code> is used * @param message the object to display */
public static void showInternalMessageDialog(Component parentComponent, Object message) { showInternalMessageDialog(parentComponent, message, UIManager. getString("OptionPane.messageDialogTitle", parentComponent), INFORMATION_MESSAGE); }
Brings up an internal dialog panel that displays a message using a default icon determined by the messageType parameter.
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the Object to display
  • title – the title string for the dialog
  • messageType – the type of message to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
/** * Brings up an internal dialog panel that displays a message * using a default icon determined by the <code>messageType</code> * parameter. * * @param parentComponent determines the <code>Frame</code> * in which the dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a default <code>Frame</code> is used * @param message the <code>Object</code> to display * @param title the title string for the dialog * @param messageType the type of message to be displayed: * <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> */
public static void showInternalMessageDialog(Component parentComponent, Object message, String title, int messageType) { showInternalMessageDialog(parentComponent, message, title, messageType,null); }
Brings up an internal dialog panel displaying a message, specifying all parameters.
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the Object to display
  • title – the title string for the dialog
  • messageType – the type of message to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
  • icon – an icon to display in the dialog that helps the user identify the kind of message that is being displayed
/** * Brings up an internal dialog panel displaying a message, * specifying all parameters. * * @param parentComponent determines the <code>Frame</code> * in which the dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a default <code>Frame</code> is used * @param message the <code>Object</code> to display * @param title the title string for the dialog * @param messageType the type of message to be displayed: * <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @param icon an icon to display in the dialog that helps the user * identify the kind of message that is being displayed */
public static void showInternalMessageDialog(Component parentComponent, Object message, String title, int messageType, Icon icon){ showInternalOptionDialog(parentComponent, message, title, DEFAULT_OPTION, messageType, icon, null, null); }
Brings up an internal dialog panel with the options Yes, No and Cancel; with the title, Select an Option.
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the Object to display
Returns:an integer indicating the option selected by the user
/** * Brings up an internal dialog panel with the options <i>Yes</i>, <i>No</i> * and <i>Cancel</i>; with the title, <b>Select an Option</b>. * * @param parentComponent determines the <code>Frame</code> in * which the dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a default <code>Frame</code> is used * @param message the <code>Object</code> to display * @return an integer indicating the option selected by the user */
public static int showInternalConfirmDialog(Component parentComponent, Object message) { return showInternalConfirmDialog(parentComponent, message, UIManager.getString("OptionPane.titleText"), YES_NO_CANCEL_OPTION); }
Brings up a internal dialog panel where the number of choices is determined by the optionType parameter.
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the object to display in the dialog; a Component object is rendered as a Component; a String object is rendered as a string; other objects are converted to a String using the toString method
  • title – the title string for the dialog
  • optionType – an integer designating the options available on the dialog: YES_NO_OPTION, or YES_NO_CANCEL_OPTION
Returns:an integer indicating the option selected by the user
/** * Brings up a internal dialog panel where the number of choices * is determined by the <code>optionType</code> parameter. * * @param parentComponent determines the <code>Frame</code> * in which the dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a default <code>Frame</code> is used * @param message the object to display in the dialog; a * <code>Component</code> object is rendered as a * <code>Component</code>; a <code>String</code> * object is rendered as a string; other objects * are converted to a <code>String</code> using the * <code>toString</code> method * @param title the title string for the dialog * @param optionType an integer designating the options * available on the dialog: <code>YES_NO_OPTION</code>, * or <code>YES_NO_CANCEL_OPTION</code> * @return an integer indicating the option selected by the user */
public static int showInternalConfirmDialog(Component parentComponent, Object message, String title, int optionType) { return showInternalConfirmDialog(parentComponent, message, title, optionType, QUESTION_MESSAGE); }
Brings up an internal dialog panel where the number of choices is determined by the optionType parameter, where the messageType parameter determines the icon to display. The messageType parameter is primarily used to supply a default icon from the Look and Feel.
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the object to display in the dialog; a Component object is rendered as a Component; a String object is rendered as a string; other objects are converted to a String using the toString method
  • title – the title string for the dialog
  • optionType – an integer designating the options available on the dialog: YES_NO_OPTION, or YES_NO_CANCEL_OPTION
  • messageType – an integer designating the kind of message this is, primarily used to determine the icon from the pluggable Look and Feel: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
Returns:an integer indicating the option selected by the user
/** * Brings up an internal dialog panel where the number of choices * is determined by the <code>optionType</code> parameter, where * the <code>messageType</code> parameter determines the icon to display. * The <code>messageType</code> parameter is primarily used to supply * a default icon from the Look and Feel. * * @param parentComponent determines the <code>Frame</code> in * which the dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a default <code>Frame</code> is used * @param message the object to display in the dialog; a * <code>Component</code> object is rendered as a * <code>Component</code>; a <code>String</code> * object is rendered as a string; other objects are * converted to a <code>String</code> using the * <code>toString</code> method * @param title the title string for the dialog * @param optionType an integer designating the options * available on the dialog: * <code>YES_NO_OPTION</code>, or <code>YES_NO_CANCEL_OPTION</code> * @param messageType an integer designating the kind of message this is, * primarily used to determine the icon from the * pluggable Look and Feel: <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @return an integer indicating the option selected by the user */
public static int showInternalConfirmDialog(Component parentComponent, Object message, String title, int optionType, int messageType) { return showInternalConfirmDialog(parentComponent, message, title, optionType, messageType, null); }
Brings up an internal dialog panel with a specified icon, where the number of choices is determined by the optionType parameter. The messageType parameter is primarily used to supply a default icon from the look and feel.
Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the object to display in the dialog; a Component object is rendered as a Component; a String object is rendered as a string; other objects are converted to a String using the toString method
  • title – the title string for the dialog
  • optionType – an integer designating the options available on the dialog: YES_NO_OPTION, or YES_NO_CANCEL_OPTION.
  • messageType – an integer designating the kind of message this is, primarily used to determine the icon from the pluggable Look and Feel: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
  • icon – the icon to display in the dialog
Returns:an integer indicating the option selected by the user
/** * Brings up an internal dialog panel with a specified icon, where * the number of choices is determined by the <code>optionType</code> * parameter. * The <code>messageType</code> parameter is primarily used to supply * a default icon from the look and feel. * * @param parentComponent determines the <code>Frame</code> * in which the dialog is displayed; if <code>null</code>, * or if the parentComponent has no Frame, a * default <code>Frame</code> is used * @param message the object to display in the dialog; a * <code>Component</code> object is rendered as a * <code>Component</code>; a <code>String</code> * object is rendered as a string; other objects are * converted to a <code>String</code> using the * <code>toString</code> method * @param title the title string for the dialog * @param optionType an integer designating the options available * on the dialog: * <code>YES_NO_OPTION</code>, or * <code>YES_NO_CANCEL_OPTION</code>. * @param messageType an integer designating the kind of message this is, * primarily used to determine the icon from the pluggable * Look and Feel: <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @param icon the icon to display in the dialog * @return an integer indicating the option selected by the user */
public static int showInternalConfirmDialog(Component parentComponent, Object message, String title, int optionType, int messageType, Icon icon) { return showInternalOptionDialog(parentComponent, message, title, optionType, messageType, icon, null, null); } private static boolean checkFrameForComponent(Component parentComponent) { if (parentComponent == null) { return false; } if (parentComponent instanceof Frame) { return true; } return checkFrameForComponent(parentComponent.getParent()); }
Brings up an internal dialog panel with a specified icon, where the initial choice is determined by the initialValue parameter and the number of choices is determined by the optionType parameter.

If optionType is YES_NO_OPTION, or YES_NO_CANCEL_OPTION and the options parameter is null, then the options are supplied by the Look and Feel.

The messageType parameter is primarily used to supply a default icon from the look and feel.

Params:
  • parentComponent – determines the Frame in which the dialog is displayed; if null, or if the parentComponent has no Frame, a default Frame is used
  • message – the object to display in the dialog; a Component object is rendered as a Component; a String object is rendered as a string. Other objects are converted to a String using the toString method
  • title – the title string for the dialog
  • optionType – an integer designating the options available on the dialog: YES_NO_OPTION, or YES_NO_CANCEL_OPTION
  • messageType – an integer designating the kind of message this is; primarily used to determine the icon from the pluggable Look and Feel: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
  • icon – the icon to display in the dialog
  • options – an array of objects indicating the possible choices the user can make; if the objects are components, they are rendered properly; non-String objects are rendered using their toString methods; if this parameter is null, the options are determined by the Look and Feel
  • initialValue – the object that represents the default selection for the dialog; only meaningful if options is used; can be null
Returns:an integer indicating the option chosen by the user, or CLOSED_OPTION if the user closed the Dialog
/** * Brings up an internal dialog panel with a specified icon, where * the initial choice is determined by the <code>initialValue</code> * parameter and the number of choices is determined by the * <code>optionType</code> parameter. * <p> * If <code>optionType</code> is <code>YES_NO_OPTION</code>, or * <code>YES_NO_CANCEL_OPTION</code> * and the <code>options</code> parameter is <code>null</code>, * then the options are supplied by the Look and Feel. * <p> * The <code>messageType</code> parameter is primarily used to supply * a default icon from the look and feel. * * @param parentComponent determines the <code>Frame</code> * in which the dialog is displayed; if <code>null</code>, * or if the <code>parentComponent</code> has no * <code>Frame</code>, a default <code>Frame</code> is used * @param message the object to display in the dialog; a * <code>Component</code> object is rendered as a * <code>Component</code>; a <code>String</code> * object is rendered as a string. Other objects are * converted to a <code>String</code> using the * <code>toString</code> method * @param title the title string for the dialog * @param optionType an integer designating the options available * on the dialog: <code>YES_NO_OPTION</code>, * or <code>YES_NO_CANCEL_OPTION</code> * @param messageType an integer designating the kind of message this is; * primarily used to determine the icon from the * pluggable Look and Feel: <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @param icon the icon to display in the dialog * @param options an array of objects indicating the possible choices * the user can make; if the objects are components, they * are rendered properly; non-<code>String</code> * objects are rendered using their <code>toString</code> * methods; if this parameter is <code>null</code>, * the options are determined by the Look and Feel * @param initialValue the object that represents the default selection * for the dialog; only meaningful if <code>options</code> * is used; can be <code>null</code> * @return an integer indicating the option chosen by the user, * or <code>CLOSED_OPTION</code> if the user closed the Dialog */
public static int showInternalOptionDialog(Component parentComponent, Object message, String title, int optionType, int messageType, Icon icon, Object[] options, Object initialValue) { JOptionPane pane = new JOptionPane(message, messageType, optionType, icon, options, initialValue); pane.putClientProperty(PopupFactory_FORCE_HEAVYWEIGHT_POPUP, Boolean.TRUE); Component fo = KeyboardFocusManager.getCurrentKeyboardFocusManager(). getFocusOwner(); pane.setInitialValue(initialValue); if (checkFrameForComponent(parentComponent)) { JInternalFrame dialog = pane.createInternalFrame(parentComponent, title); pane.selectInitialValue(); dialog.setVisible(true); /* Since all input will be blocked until this dialog is dismissed, * make sure its parent containers are visible first (this component * is tested below). This is necessary for JApplets, because * because an applet normally isn't made visible until after its * start() method returns -- if this method is called from start(), * the applet will appear to hang while an invisible modal frame * waits for input. */ if (dialog.isVisible() && !dialog.isShowing()) { Container parent = dialog.getParent(); while (parent != null) { if (parent.isVisible() == false) { parent.setVisible(true); } parent = parent.getParent(); } } AWTAccessor.getContainerAccessor().startLWModal(dialog); } else { pane.setComponentOrientation(getRootFrame().getComponentOrientation()); int style = styleFromMessageType(messageType); JDialog dialog = pane.createDialog(parentComponent, title, style); pane.selectInitialValue(); dialog.setVisible(true); } if (parentComponent instanceof JInternalFrame) { try { ((JInternalFrame)parentComponent).setSelected(true); } catch (java.beans.PropertyVetoException e) { } } Object selectedValue = pane.getValue(); if (fo != null && fo.isShowing()) { fo.requestFocus(); } if (selectedValue == null) { return CLOSED_OPTION; } if (options == null) { if (selectedValue instanceof Integer) { return ((Integer)selectedValue).intValue(); } return CLOSED_OPTION; } for(int counter = 0, maxCounter = options.length; counter < maxCounter; counter++) { if (options[counter].equals(selectedValue)) { return counter; } } return CLOSED_OPTION; }
Shows an internal question-message dialog requesting input from the user parented to parentComponent. The dialog is displayed in the Component's frame, and is usually positioned below the Component.
Params:
  • parentComponent – the parent Component for the dialog
  • message – the Object to display
Returns:user's input
/** * Shows an internal question-message dialog requesting input from * the user parented to <code>parentComponent</code>. The dialog * is displayed in the <code>Component</code>'s frame, * and is usually positioned below the <code>Component</code>. * * @param parentComponent the parent <code>Component</code> * for the dialog * @param message the <code>Object</code> to display * @return user's input */
public static String showInternalInputDialog(Component parentComponent, Object message) { return showInternalInputDialog(parentComponent, message, UIManager. getString("OptionPane.inputDialogTitle", parentComponent), QUESTION_MESSAGE); }
Shows an internal dialog requesting input from the user parented to parentComponent with the dialog having the title title and message type messageType.
Params:
  • parentComponent – the parent Component for the dialog
  • message – the Object to display
  • title – the String to display in the dialog title bar
  • messageType – the type of message that is to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
Returns:user's input
/** * Shows an internal dialog requesting input from the user parented * to <code>parentComponent</code> with the dialog having the title * <code>title</code> and message type <code>messageType</code>. * * @param parentComponent the parent <code>Component</code> for the dialog * @param message the <code>Object</code> to display * @param title the <code>String</code> to display in the * dialog title bar * @param messageType the type of message that is to be displayed: * ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, * QUESTION_MESSAGE, or PLAIN_MESSAGE * @return user's input */
public static String showInternalInputDialog(Component parentComponent, Object message, String title, int messageType) { return (String)showInternalInputDialog(parentComponent, message, title, messageType, null, null, null); }
Prompts the user for input in a blocking internal dialog where the initial selection, possible selections, and all other options can be specified. The user will able to choose from selectionValues, where null implies the user can input whatever they wish, usually by means of a JTextField. initialSelectionValue is the initial value to prompt the user with. It is up to the UI to decide how best to represent the selectionValues, but usually a JComboBox, JList, or JTextField will be used.
Params:
  • parentComponent – the parent Component for the dialog
  • message – the Object to display
  • title – the String to display in the dialog title bar
  • messageType – the type of message to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
  • icon – the Icon image to display
  • selectionValues – an array of Objects that gives the possible selections
  • initialSelectionValue – the value used to initialize the input field
Returns:user's input, or null meaning the user canceled the input
/** * Prompts the user for input in a blocking internal dialog where * the initial selection, possible selections, and all other * options can be specified. The user will able to choose from * <code>selectionValues</code>, where <code>null</code> * implies the user can input * whatever they wish, usually by means of a <code>JTextField</code>. * <code>initialSelectionValue</code> is the initial value to prompt * the user with. It is up to the UI to decide how best to represent * the <code>selectionValues</code>, but usually a * <code>JComboBox</code>, <code>JList</code>, or * <code>JTextField</code> will be used. * * @param parentComponent the parent <code>Component</code> for the dialog * @param message the <code>Object</code> to display * @param title the <code>String</code> to display in the dialog * title bar * @param messageType the type of message to be displayed: * <code>ERROR_MESSAGE</code>, <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, or <code>PLAIN_MESSAGE</code> * @param icon the <code>Icon</code> image to display * @param selectionValues an array of <code>Objects</code> that * gives the possible selections * @param initialSelectionValue the value used to initialize the input * field * @return user's input, or <code>null</code> meaning the user * canceled the input */
public static Object showInternalInputDialog(Component parentComponent, Object message, String title, int messageType, Icon icon, Object[] selectionValues, Object initialSelectionValue) { JOptionPane pane = new JOptionPane(message, messageType, OK_CANCEL_OPTION, icon, null, null); pane.putClientProperty(PopupFactory_FORCE_HEAVYWEIGHT_POPUP, Boolean.TRUE); Component fo = KeyboardFocusManager.getCurrentKeyboardFocusManager(). getFocusOwner(); pane.setWantsInput(true); pane.setSelectionValues(selectionValues); pane.setInitialSelectionValue(initialSelectionValue); JInternalFrame dialog = pane.createInternalFrame(parentComponent, title); pane.selectInitialValue(); dialog.setVisible(true); /* Since all input will be blocked until this dialog is dismissed, * make sure its parent containers are visible first (this component * is tested below). This is necessary for JApplets, because * because an applet normally isn't made visible until after its * start() method returns -- if this method is called from start(), * the applet will appear to hang while an invisible modal frame * waits for input. */ if (dialog.isVisible() && !dialog.isShowing()) { Container parent = dialog.getParent(); while (parent != null) { if (parent.isVisible() == false) { parent.setVisible(true); } parent = parent.getParent(); } } AWTAccessor.getContainerAccessor().startLWModal(dialog); if (parentComponent instanceof JInternalFrame) { try { ((JInternalFrame)parentComponent).setSelected(true); } catch (java.beans.PropertyVetoException e) { } } if (fo != null && fo.isShowing()) { fo.requestFocus(); } Object value = pane.getInputValue(); if (value == UNINITIALIZED_VALUE) { return null; } return value; }
Creates and returns an instance of JInternalFrame. The internal frame is created with the specified title, and wrapping the JOptionPane. The returned JInternalFrame is added to the JDesktopPane ancestor of parentComponent, or components parent if one its ancestors isn't a JDesktopPane, or if parentComponent doesn't have a parent then a RuntimeException is thrown.
Params:
  • parentComponent – the parent Component for the internal frame
  • title – the String to display in the frame's title bar
Throws:
Returns:a JInternalFrame containing a JOptionPane
/** * Creates and returns an instance of <code>JInternalFrame</code>. * The internal frame is created with the specified title, * and wrapping the <code>JOptionPane</code>. * The returned <code>JInternalFrame</code> is * added to the <code>JDesktopPane</code> ancestor of * <code>parentComponent</code>, or components * parent if one its ancestors isn't a <code>JDesktopPane</code>, * or if <code>parentComponent</code> * doesn't have a parent then a <code>RuntimeException</code> is thrown. * * @param parentComponent the parent <code>Component</code> for * the internal frame * @param title the <code>String</code> to display in the * frame's title bar * @return a <code>JInternalFrame</code> containing a * <code>JOptionPane</code> * @exception RuntimeException if <code>parentComponent</code> does * not have a valid parent */
public JInternalFrame createInternalFrame(Component parentComponent, String title) { Container parent = JOptionPane.getDesktopPaneForComponent(parentComponent); if (parent == null && (parentComponent == null || (parent = parentComponent.getParent()) == null)) { throw new RuntimeException("JOptionPane: parentComponent does " + "not have a valid parent"); } // Option dialogs should be closable only final JInternalFrame iFrame = new JInternalFrame(title, false, true, false, false); iFrame.putClientProperty("JInternalFrame.frameType", "optionDialog"); iFrame.putClientProperty("JInternalFrame.messageType", Integer.valueOf(getMessageType())); iFrame.addInternalFrameListener(new InternalFrameAdapter() { public void internalFrameClosing(InternalFrameEvent e) { if (getValue() == UNINITIALIZED_VALUE) { setValue(null); } } }); addPropertyChangeListener(new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent event) { // Let the defaultCloseOperation handle the closing // if the user closed the iframe without selecting a button // (newValue = null in that case). Otherwise, close the dialog. if (iFrame.isVisible() && event.getSource() == JOptionPane.this && event.getPropertyName().equals(VALUE_PROPERTY)) { AWTAccessor.getContainerAccessor().stopLWModal(iFrame); try { iFrame.setClosed(true); } catch (java.beans.PropertyVetoException e) { } iFrame.setVisible(false); } } }); iFrame.getContentPane().add(this, BorderLayout.CENTER); if (parent instanceof JDesktopPane) { parent.add(iFrame, JLayeredPane.MODAL_LAYER); } else { parent.add(iFrame, BorderLayout.CENTER); } Dimension iFrameSize = iFrame.getPreferredSize(); Dimension rootSize = parent.getSize(); Dimension parentSize = parentComponent.getSize(); iFrame.setBounds((rootSize.width - iFrameSize.width) / 2, (rootSize.height - iFrameSize.height) / 2, iFrameSize.width, iFrameSize.height); // We want dialog centered relative to its parent component Point iFrameCoord = SwingUtilities.convertPoint(parentComponent, 0, 0, parent); int x = (parentSize.width - iFrameSize.width) / 2 + iFrameCoord.x; int y = (parentSize.height - iFrameSize.height) / 2 + iFrameCoord.y; // If possible, dialog should be fully visible int ovrx = x + iFrameSize.width - rootSize.width; int ovry = y + iFrameSize.height - rootSize.height; x = Math.max((ovrx > 0? x - ovrx: x), 0); y = Math.max((ovry > 0? y - ovry: y), 0); iFrame.setBounds(x, y, iFrameSize.width, iFrameSize.height); parent.validate(); try { iFrame.setSelected(true); } catch (java.beans.PropertyVetoException e) {} return iFrame; }
Returns the specified component's Frame.
Params:
  • parentComponent – the Component to check for a Frame
Throws:
See Also:
Returns:the Frame that contains the component, or getRootFrame if the component is null, or does not have a valid Frame parent
/** * Returns the specified component's <code>Frame</code>. * * @param parentComponent the <code>Component</code> to check for a * <code>Frame</code> * @return the <code>Frame</code> that contains the component, * or <code>getRootFrame</code> * if the component is <code>null</code>, * or does not have a valid <code>Frame</code> parent * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see #getRootFrame * @see java.awt.GraphicsEnvironment#isHeadless */
public static Frame getFrameForComponent(Component parentComponent) throws HeadlessException { if (parentComponent == null) return getRootFrame(); if (parentComponent instanceof Frame) return (Frame)parentComponent; return JOptionPane.getFrameForComponent(parentComponent.getParent()); }
Returns the specified component's toplevel Frame or Dialog.
Params:
  • parentComponent – the Component to check for a Frame or Dialog
Throws:
See Also:
Returns:the Frame or Dialog that contains the component, or the default frame if the component is null, or does not have a valid Frame or Dialog parent
/** * Returns the specified component's toplevel <code>Frame</code> or * <code>Dialog</code>. * * @param parentComponent the <code>Component</code> to check for a * <code>Frame</code> or <code>Dialog</code> * @return the <code>Frame</code> or <code>Dialog</code> that * contains the component, or the default * frame if the component is <code>null</code>, * or does not have a valid * <code>Frame</code> or <code>Dialog</code> parent * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see java.awt.GraphicsEnvironment#isHeadless */
static Window getWindowForComponent(Component parentComponent) throws HeadlessException { if (parentComponent == null) return getRootFrame(); if (parentComponent instanceof Frame || parentComponent instanceof Dialog) return (Window)parentComponent; return JOptionPane.getWindowForComponent(parentComponent.getParent()); }
Returns the specified component's desktop pane.
Params:
  • parentComponent – the Component to check for a desktop
Returns:the JDesktopPane that contains the component, or null if the component is null or does not have an ancestor that is a JInternalFrame
/** * Returns the specified component's desktop pane. * * @param parentComponent the <code>Component</code> to check for a * desktop * @return the <code>JDesktopPane</code> that contains the component, * or <code>null</code> if the component is <code>null</code> * or does not have an ancestor that is a * <code>JInternalFrame</code> */
public static JDesktopPane getDesktopPaneForComponent(Component parentComponent) { if(parentComponent == null) return null; if(parentComponent instanceof JDesktopPane) return (JDesktopPane)parentComponent; return getDesktopPaneForComponent(parentComponent.getParent()); } private static final Object sharedFrameKey = JOptionPane.class;
Sets the frame to use for class methods in which a frame is not provided.

Note: It is recommended that rather than using this method you supply a valid parent.

Params:
  • newRootFrame – the default Frame to use
/** * Sets the frame to use for class methods in which a frame is * not provided. * <p> * <strong>Note:</strong> * It is recommended that rather than using this method you supply a valid parent. * * @param newRootFrame the default <code>Frame</code> to use */
public static void setRootFrame(Frame newRootFrame) { if (newRootFrame != null) { SwingUtilities.appContextPut(sharedFrameKey, newRootFrame); } else { SwingUtilities.appContextRemove(sharedFrameKey); } }
Returns the Frame to use for the class methods in which a frame is not provided.
Throws:
See Also:
Returns:the default Frame to use
/** * Returns the <code>Frame</code> to use for the class methods in * which a frame is not provided. * * @return the default <code>Frame</code> to use * @exception HeadlessException if * <code>GraphicsEnvironment.isHeadless</code> returns * <code>true</code> * @see #setRootFrame * @see java.awt.GraphicsEnvironment#isHeadless */
public static Frame getRootFrame() throws HeadlessException { Frame sharedFrame = (Frame)SwingUtilities.appContextGet(sharedFrameKey); if (sharedFrame == null) { sharedFrame = SwingUtilities.getSharedOwnerFrame(); SwingUtilities.appContextPut(sharedFrameKey, sharedFrame); } return sharedFrame; }
Creates a JOptionPane with a test message.
/** * Creates a <code>JOptionPane</code> with a test message. */
public JOptionPane() { this("JOptionPane message"); }
Creates a instance of JOptionPane to display a message using the plain-message message type and the default options delivered by the UI.
Params:
  • message – the Object to display
/** * Creates a instance of <code>JOptionPane</code> to display a * message using the * plain-message message type and the default options delivered by * the UI. * * @param message the <code>Object</code> to display */
public JOptionPane(Object message) { this(message, PLAIN_MESSAGE); }
Creates an instance of JOptionPane to display a message with the specified message type and the default options,
Params:
  • message – the Object to display
  • messageType – the type of message to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
/** * Creates an instance of <code>JOptionPane</code> to display a message * with the specified message type and the default options, * * @param message the <code>Object</code> to display * @param messageType the type of message to be displayed: * <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> */
public JOptionPane(Object message, int messageType) { this(message, messageType, DEFAULT_OPTION); }
Creates an instance of JOptionPane to display a message with the specified message type and options.
Params:
  • message – the Object to display
  • messageType – the type of message to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
  • optionType – the options to display in the pane: DEFAULT_OPTION, YES_NO_OPTION, YES_NO_CANCEL_OPTION, OK_CANCEL_OPTION
/** * Creates an instance of <code>JOptionPane</code> to display a message * with the specified message type and options. * * @param message the <code>Object</code> to display * @param messageType the type of message to be displayed: * <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @param optionType the options to display in the pane: * <code>DEFAULT_OPTION</code>, <code>YES_NO_OPTION</code>, * <code>YES_NO_CANCEL_OPTION</code>, * <code>OK_CANCEL_OPTION</code> */
public JOptionPane(Object message, int messageType, int optionType) { this(message, messageType, optionType, null); }
Creates an instance of JOptionPane to display a message with the specified message type, options, and icon.
Params:
  • message – the Object to display
  • messageType – the type of message to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
  • optionType – the options to display in the pane: DEFAULT_OPTION, YES_NO_OPTION, YES_NO_CANCEL_OPTION, OK_CANCEL_OPTION
  • icon – the Icon image to display
/** * Creates an instance of <code>JOptionPane</code> to display a message * with the specified message type, options, and icon. * * @param message the <code>Object</code> to display * @param messageType the type of message to be displayed: * <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @param optionType the options to display in the pane: * <code>DEFAULT_OPTION</code>, <code>YES_NO_OPTION</code>, * <code>YES_NO_CANCEL_OPTION</code>, * <code>OK_CANCEL_OPTION</code> * @param icon the <code>Icon</code> image to display */
public JOptionPane(Object message, int messageType, int optionType, Icon icon) { this(message, messageType, optionType, icon, null); }
Creates an instance of JOptionPane to display a message with the specified message type, icon, and options. None of the options is initially selected.

The options objects should contain either instances of Components, (which are added directly) or Strings (which are wrapped in a JButton). If you provide Components, you must ensure that when the Component is clicked it messages setValue in the created JOptionPane.

Params:
  • message – the Object to display
  • messageType – the type of message to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
  • optionType – the options to display in the pane: DEFAULT_OPTION, YES_NO_OPTION, YES_NO_CANCEL_OPTION, OK_CANCEL_OPTION
  • icon – the Icon image to display
  • options – the choices the user can select
/** * Creates an instance of <code>JOptionPane</code> to display a message * with the specified message type, icon, and options. * None of the options is initially selected. * <p> * The options objects should contain either instances of * <code>Component</code>s, (which are added directly) or * <code>Strings</code> (which are wrapped in a <code>JButton</code>). * If you provide <code>Component</code>s, you must ensure that when the * <code>Component</code> is clicked it messages <code>setValue</code> * in the created <code>JOptionPane</code>. * * @param message the <code>Object</code> to display * @param messageType the type of message to be displayed: * <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @param optionType the options to display in the pane: * <code>DEFAULT_OPTION</code>, * <code>YES_NO_OPTION</code>, * <code>YES_NO_CANCEL_OPTION</code>, * <code>OK_CANCEL_OPTION</code> * @param icon the <code>Icon</code> image to display * @param options the choices the user can select */
public JOptionPane(Object message, int messageType, int optionType, Icon icon, Object[] options) { this(message, messageType, optionType, icon, options, null); }
Creates an instance of JOptionPane to display a message with the specified message type, icon, and options, with the initially-selected option specified.
Params:
  • message – the Object to display
  • messageType – the type of message to be displayed: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
  • optionType – the options to display in the pane: DEFAULT_OPTION, YES_NO_OPTION, YES_NO_CANCEL_OPTION, OK_CANCEL_OPTION
  • icon – the Icon image to display
  • options – the choices the user can select
  • initialValue – the choice that is initially selected; if null, then nothing will be initially selected; only meaningful if options is used
/** * Creates an instance of <code>JOptionPane</code> to display a message * with the specified message type, icon, and options, with the * initially-selected option specified. * * @param message the <code>Object</code> to display * @param messageType the type of message to be displayed: * <code>ERROR_MESSAGE</code>, * <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, * or <code>PLAIN_MESSAGE</code> * @param optionType the options to display in the pane: * <code>DEFAULT_OPTION</code>, * <code>YES_NO_OPTION</code>, * <code>YES_NO_CANCEL_OPTION</code>, * <code>OK_CANCEL_OPTION</code> * @param icon the Icon image to display * @param options the choices the user can select * @param initialValue the choice that is initially selected; if * <code>null</code>, then nothing will be initially selected; * only meaningful if <code>options</code> is used */
public JOptionPane(Object message, int messageType, int optionType, Icon icon, Object[] options, Object initialValue) { this.message = message; this.options = options == null ? null : Arrays.copyOf(options, options.length); this.initialValue = initialValue; this.icon = icon; setMessageType(messageType); setOptionType(optionType); value = UNINITIALIZED_VALUE; inputValue = UNINITIALIZED_VALUE; updateUI(); }
Sets the UI object which implements the L&F for this component.
Params:
  • ui – the OptionPaneUI L&F object
See Also:
/** * Sets the UI object which implements the {@literal L&F} for this component. * * @param ui the <code>OptionPaneUI</code> {@literal L&F} object * @see UIDefaults#getUI */
@BeanProperty(hidden = true, description = "The UI object that implements the optionpane's LookAndFeel") public void setUI(OptionPaneUI ui) { if (this.ui != ui) { super.setUI(ui); invalidate(); } }
Returns the UI object which implements the L&F for this component.
Returns:the OptionPaneUI object
/** * Returns the UI object which implements the {@literal L&F} for this component. * * @return the <code>OptionPaneUI</code> object */
public OptionPaneUI getUI() { return (OptionPaneUI)ui; }
Notification from the UIManager that the L&F has changed. Replaces the current UI object with the latest version from the UIManager.
See Also:
/** * Notification from the <code>UIManager</code> that the {@literal L&F} has changed. * Replaces the current UI object with the latest version from the * <code>UIManager</code>. * * @see JComponent#updateUI */
public void updateUI() { setUI((OptionPaneUI)UIManager.getUI(this)); }
Returns the name of the UI class that implements the L&F for this component.
See Also:
Returns:the string "OptionPaneUI"
/** * Returns the name of the UI class that implements the * {@literal L&F} for this component. * * @return the string "OptionPaneUI" * @see JComponent#getUIClassID * @see UIDefaults#getUI */
@BeanProperty(bound = false) public String getUIClassID() { return uiClassID; }
Sets the option pane's message-object.
Params:
  • newMessage – the Object to display
See Also:
/** * Sets the option pane's message-object. * @param newMessage the <code>Object</code> to display * @see #getMessage */
@BeanProperty(preferred = true, description = "The optionpane's message object.") public void setMessage(Object newMessage) { Object oldMessage = message; message = newMessage; firePropertyChange(MESSAGE_PROPERTY, oldMessage, message); }
Returns the message-object this pane displays.
See Also:
  • setMessage
Returns:the Object that is displayed
/** * Returns the message-object this pane displays. * @see #setMessage * * @return the <code>Object</code> that is displayed */
public Object getMessage() { return message; }
Sets the icon to display. If non-null, the look and feel does not provide an icon.
Params:
  • newIcon – the Icon to display
See Also:
/** * Sets the icon to display. If non-<code>null</code>, the look and feel * does not provide an icon. * @param newIcon the <code>Icon</code> to display * * @see #getIcon */
@BeanProperty(preferred = true, description = "The option pane's type icon.") public void setIcon(Icon newIcon) { Object oldIcon = icon; icon = newIcon; firePropertyChange(ICON_PROPERTY, oldIcon, icon); }
Returns the icon this pane displays.
See Also:
Returns:the Icon that is displayed
/** * Returns the icon this pane displays. * @return the <code>Icon</code> that is displayed * * @see #setIcon */
public Icon getIcon() { return icon; }
Sets the value the user has chosen.
Params:
  • newValue – the chosen value
See Also:
/** * Sets the value the user has chosen. * @param newValue the chosen value * * @see #getValue */
@BeanProperty(preferred = true, description = "The option pane's value object.") public void setValue(Object newValue) { Object oldValue = value; value = newValue; firePropertyChange(VALUE_PROPERTY, oldValue, value); }
Returns the value the user has selected. UNINITIALIZED_VALUE implies the user has not yet made a choice, null means the user closed the window with out choosing anything. Otherwise the returned value will be one of the options defined in this object.
See Also:
Returns:the Object chosen by the user, UNINITIALIZED_VALUE if the user has not yet made a choice, or null if the user closed the window without making a choice
/** * Returns the value the user has selected. <code>UNINITIALIZED_VALUE</code> * implies the user has not yet made a choice, <code>null</code> means the * user closed the window with out choosing anything. Otherwise * the returned value will be one of the options defined in this * object. * * @return the <code>Object</code> chosen by the user, * <code>UNINITIALIZED_VALUE</code> * if the user has not yet made a choice, or <code>null</code> if * the user closed the window without making a choice * * @see #setValue */
public Object getValue() { return value; }
Sets the options this pane displays. If an element in newOptions is a Component it is added directly to the pane, otherwise a button is created for the element.
Params:
  • newOptions – an array of Objects that create the buttons the user can click on, or arbitrary Components to add to the pane
See Also:
/** * Sets the options this pane displays. If an element in * <code>newOptions</code> is a <code>Component</code> * it is added directly to the pane, * otherwise a button is created for the element. * * @param newOptions an array of <code>Objects</code> that create the * buttons the user can click on, or arbitrary * <code>Components</code> to add to the pane * * @see #getOptions */
@BeanProperty(description = "The option pane's options objects.") public void setOptions(Object[] newOptions) { Object[] oldOptions = options; options = newOptions == null ? null : Arrays.copyOf(newOptions, newOptions.length); firePropertyChange(OPTIONS_PROPERTY, oldOptions, options); }
Returns the choices the user can make.
See Also:
Returns:the array of Objects that give the user's choices
/** * Returns the choices the user can make. * @return the array of <code>Objects</code> that give the user's choices * * @see #setOptions */
public Object[] getOptions() { return options == null ? null : Arrays.copyOf(options, options.length); }
Sets the initial value that is to be enabled -- the Component that has the focus when the pane is initially displayed.
Params:
  • newInitialValue – the Object that gets the initial keyboard focus
See Also:
/** * Sets the initial value that is to be enabled -- the * <code>Component</code> * that has the focus when the pane is initially displayed. * * @param newInitialValue the <code>Object</code> that gets the initial * keyboard focus * * @see #getInitialValue */
@BeanProperty(preferred = true, description = "The option pane's initial value object.") public void setInitialValue(Object newInitialValue) { Object oldIV = initialValue; initialValue = newInitialValue; firePropertyChange(INITIAL_VALUE_PROPERTY, oldIV, initialValue); }
Returns the initial value.
See Also:
Returns:the Object that gets the initial keyboard focus
/** * Returns the initial value. * * @return the <code>Object</code> that gets the initial keyboard focus * * @see #setInitialValue */
public Object getInitialValue() { return initialValue; }
Sets the option pane's message type. The message type is used by the Look and Feel to determine the icon to display (if not supplied) as well as potentially how to lay out the parentComponent.
Params:
  • newType – an integer specifying the kind of message to display: ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE, QUESTION_MESSAGE, or PLAIN_MESSAGE
Throws:
See Also:
/** * Sets the option pane's message type. * The message type is used by the Look and Feel to determine the * icon to display (if not supplied) as well as potentially how to * lay out the <code>parentComponent</code>. * @param newType an integer specifying the kind of message to display: * <code>ERROR_MESSAGE</code>, <code>INFORMATION_MESSAGE</code>, * <code>WARNING_MESSAGE</code>, * <code>QUESTION_MESSAGE</code>, or <code>PLAIN_MESSAGE</code> * @exception RuntimeException if <code>newType</code> is not one of the * legal values listed above * @see #getMessageType */
@BeanProperty(preferred = true, description = "The option pane's message type.") public void setMessageType(int newType) { checkMessageType(newType); int oldType = messageType; messageType = newType; firePropertyChange(MESSAGE_TYPE_PROPERTY, oldType, messageType); } private static void checkMessageType(int newType){ if(newType != ERROR_MESSAGE && newType != INFORMATION_MESSAGE && newType != WARNING_MESSAGE && newType != QUESTION_MESSAGE && newType != PLAIN_MESSAGE) throw new RuntimeException("JOptionPane: type must be one of" + " JOptionPane.ERROR_MESSAGE," + " JOptionPane.INFORMATION_MESSAGE," + " JOptionPane.WARNING_MESSAGE," + " JOptionPane.QUESTION_MESSAGE" + " or JOptionPane.PLAIN_MESSAGE"); }
Returns the message type.
See Also:
Returns:an integer specifying the message type
/** * Returns the message type. * * @return an integer specifying the message type * * @see #setMessageType */
public int getMessageType() { return messageType; }
Sets the options to display. The option type is used by the Look and Feel to determine what buttons to show (unless options are supplied).
Params:
  • newType – an integer specifying the options the L&F is to display: DEFAULT_OPTION, YES_NO_OPTION, YES_NO_CANCEL_OPTION, or OK_CANCEL_OPTION
Throws:
See Also:
/** * Sets the options to display. * The option type is used by the Look and Feel to * determine what buttons to show (unless options are supplied). * @param newType an integer specifying the options the {@literal L&F} is to display: * <code>DEFAULT_OPTION</code>, * <code>YES_NO_OPTION</code>, * <code>YES_NO_CANCEL_OPTION</code>, * or <code>OK_CANCEL_OPTION</code> * @exception RuntimeException if <code>newType</code> is not one of * the legal values listed above * * @see #getOptionType * @see #setOptions */
@BeanProperty(preferred = true, description = "The option pane's option type.") public void setOptionType(int newType) { checkOptionType(newType); int oldType = optionType; optionType = newType; firePropertyChange(OPTION_TYPE_PROPERTY, oldType, optionType); } private static void checkOptionType(int newType) { if (newType != DEFAULT_OPTION && newType != YES_NO_OPTION && newType != YES_NO_CANCEL_OPTION && newType != OK_CANCEL_OPTION) { throw new RuntimeException("JOptionPane: option type must be one of" + " JOptionPane.DEFAULT_OPTION, JOptionPane.YES_NO_OPTION," + " JOptionPane.YES_NO_CANCEL_OPTION" + " or JOptionPane.OK_CANCEL_OPTION"); } }
Returns the type of options that are displayed.
See Also:
Returns:an integer specifying the user-selectable options
/** * Returns the type of options that are displayed. * * @return an integer specifying the user-selectable options * * @see #setOptionType */
public int getOptionType() { return optionType; }
Sets the input selection values for a pane that provides the user with a list of items to choose from. (The UI provides a widget for choosing one of the values.) A null value implies the user can input whatever they wish, usually by means of a JTextField.

Sets wantsInput to true. Use setInitialSelectionValue to specify the initially-chosen value. After the pane as been enabled, inputValue is set to the value the user has selected.

Params:
  • newValues – an array of Objects the user to be displayed (usually in a list or combo-box) from which the user can make a selection
See Also:
/** * Sets the input selection values for a pane that provides the user * with a list of items to choose from. (The UI provides a widget * for choosing one of the values.) A <code>null</code> value * implies the user can input whatever they wish, usually by means * of a <code>JTextField</code>. * <p> * Sets <code>wantsInput</code> to true. Use * <code>setInitialSelectionValue</code> to specify the initially-chosen * value. After the pane as been enabled, <code>inputValue</code> is * set to the value the user has selected. * @param newValues an array of <code>Objects</code> the user to be * displayed * (usually in a list or combo-box) from which * the user can make a selection * @see #setWantsInput * @see #setInitialSelectionValue * @see #getSelectionValues */
@BeanProperty(description = "The option pane's selection values.") public void setSelectionValues(Object[] newValues) { Object[] oldValues = selectionValues; selectionValues = newValues == null ? null : Arrays.copyOf(newValues, newValues.length); firePropertyChange(SELECTION_VALUES_PROPERTY, oldValues, newValues); if(selectionValues != null) setWantsInput(true); }
Returns the input selection values.
See Also:
Returns:the array of Objects the user can select
/** * Returns the input selection values. * * @return the array of <code>Objects</code> the user can select * @see #setSelectionValues */
public Object[] getSelectionValues() { return selectionValues == null ? null : Arrays.copyOf(selectionValues, selectionValues.length); }
Sets the input value that is initially displayed as selected to the user. Only used if wantsInput is true.
Params:
  • newValue – the initially selected value
See Also:
/** * Sets the input value that is initially displayed as selected to the user. * Only used if <code>wantsInput</code> is true. * @param newValue the initially selected value * @see #setSelectionValues * @see #getInitialSelectionValue */
@BeanProperty(description = "The option pane's initial selection value object.") public void setInitialSelectionValue(Object newValue) { Object oldValue = initialSelectionValue; initialSelectionValue = newValue; firePropertyChange(INITIAL_SELECTION_VALUE_PROPERTY, oldValue, newValue); }
Returns the input value that is displayed as initially selected to the user.
See Also:
Returns:the initially selected value
/** * Returns the input value that is displayed as initially selected to the user. * * @return the initially selected value * @see #setInitialSelectionValue * @see #setSelectionValues */
public Object getInitialSelectionValue() { return initialSelectionValue; }
Sets the input value that was selected or input by the user. Only used if wantsInput is true. Note that this method is invoked internally by the option pane (in response to user action) and should generally not be called by client programs. To set the input value initially displayed as selected to the user, use setInitialSelectionValue.
Params:
  • newValue – the Object used to set the value that the user specified (usually in a text field)
See Also:
/** * Sets the input value that was selected or input by the user. * Only used if <code>wantsInput</code> is true. Note that this method * is invoked internally by the option pane (in response to user action) * and should generally not be called by client programs. To set the * input value initially displayed as selected to the user, use * <code>setInitialSelectionValue</code>. * * @param newValue the <code>Object</code> used to set the * value that the user specified (usually in a text field) * @see #setSelectionValues * @see #setInitialSelectionValue * @see #setWantsInput * @see #getInputValue */
@BeanProperty(preferred = true, description = "The option pane's input value object.") public void setInputValue(Object newValue) { Object oldValue = inputValue; inputValue = newValue; firePropertyChange(INPUT_VALUE_PROPERTY, oldValue, newValue); }
Returns the value the user has input, if wantsInput is true.
See Also:
Returns:the Object the user specified, if it was one of the objects, or a String if it was a value typed into a field
/** * Returns the value the user has input, if <code>wantsInput</code> * is true. * * @return the <code>Object</code> the user specified, * if it was one of the objects, or a * <code>String</code> if it was a value typed into a * field * @see #setSelectionValues * @see #setWantsInput * @see #setInputValue */
public Object getInputValue() { return inputValue; }
Returns the maximum number of characters to place on a line in a message. Default is to return Integer.MAX_VALUE. The value can be changed by overriding this method in a subclass.
Returns:an integer giving the maximum number of characters on a line
/** * Returns the maximum number of characters to place on a line in a * message. Default is to return <code>Integer.MAX_VALUE</code>. * The value can be * changed by overriding this method in a subclass. * * @return an integer giving the maximum number of characters on a line */
@BeanProperty(bound = false) public int getMaxCharactersPerLineCount() { return Integer.MAX_VALUE; }
Sets the wantsInput property. If newValue is true, an input component (such as a text field or combo box) whose parent is parentComponent is provided to allow the user to input a value. If getSelectionValues returns a non-null array, the input value is one of the objects in that array. Otherwise the input value is whatever the user inputs.

This is a bound property.

Params:
  • newValue – if true, an input component whose parent is parentComponent is provided to allow the user to input a value.
See Also:
/** * Sets the <code>wantsInput</code> property. * If <code>newValue</code> is true, an input component * (such as a text field or combo box) whose parent is * <code>parentComponent</code> is provided to * allow the user to input a value. If <code>getSelectionValues</code> * returns a non-<code>null</code> array, the input value is one of the * objects in that array. Otherwise the input value is whatever * the user inputs. * <p> * This is a bound property. * * @param newValue if true, an input component whose parent is {@code parentComponent} * is provided to allow the user to input a value. * @see #setSelectionValues * @see #setInputValue */
@BeanProperty(preferred = true, description = "Flag which allows the user to input a value.") public void setWantsInput(boolean newValue) { boolean oldValue = wantsInput; wantsInput = newValue; firePropertyChange(WANTS_INPUT_PROPERTY, oldValue, newValue); }
Returns the value of the wantsInput property.
See Also:
Returns:true if an input component will be provided
/** * Returns the value of the <code>wantsInput</code> property. * * @return true if an input component will be provided * @see #setWantsInput */
public boolean getWantsInput() { return wantsInput; }
Requests that the initial value be selected, which will set focus to the initial value. This method should be invoked after the window containing the option pane is made visible.
/** * Requests that the initial value be selected, which will set * focus to the initial value. This method * should be invoked after the window containing the option pane * is made visible. */
public void selectInitialValue() { OptionPaneUI ui = getUI(); if (ui != null) { ui.selectInitialValue(this); } } private static int styleFromMessageType(int messageType) { switch (messageType) { case ERROR_MESSAGE: return JRootPane.ERROR_DIALOG; case QUESTION_MESSAGE: return JRootPane.QUESTION_DIALOG; case WARNING_MESSAGE: return JRootPane.WARNING_DIALOG; case INFORMATION_MESSAGE: return JRootPane.INFORMATION_DIALOG; case PLAIN_MESSAGE: default: return JRootPane.PLAIN_DIALOG; } } // Serialization support. private void writeObject(ObjectOutputStream s) throws IOException { Vector<Object> values = new Vector<Object>(); s.defaultWriteObject(); // Save the icon, if its Serializable. if(icon != null && icon instanceof Serializable) { values.addElement("icon"); values.addElement(icon); } // Save the message, if its Serializable. if(message != null && message instanceof Serializable) { values.addElement("message"); values.addElement(message); } // Save the treeModel, if its Serializable. if(options != null) { Vector<Object> serOptions = new Vector<Object>(); for(int counter = 0, maxCounter = options.length; counter < maxCounter; counter++) if(options[counter] instanceof Serializable) serOptions.addElement(options[counter]); if(serOptions.size() > 0) { int optionCount = serOptions.size(); Object[] arrayOptions = new Object[optionCount]; serOptions.copyInto(arrayOptions); values.addElement("options"); values.addElement(arrayOptions); } } // Save the initialValue, if its Serializable. if(initialValue != null && initialValue instanceof Serializable) { values.addElement("initialValue"); values.addElement(initialValue); } // Save the value, if its Serializable. if(value != null && value instanceof Serializable) { values.addElement("value"); values.addElement(value); } // Save the selectionValues, if its Serializable. if(selectionValues != null) { boolean serialize = true; for(int counter = 0, maxCounter = selectionValues.length; counter < maxCounter; counter++) { if(selectionValues[counter] != null && !(selectionValues[counter] instanceof Serializable)) { serialize = false; break; } } if(serialize) { values.addElement("selectionValues"); values.addElement(selectionValues); } } // Save the inputValue, if its Serializable. if(inputValue != null && inputValue instanceof Serializable) { values.addElement("inputValue"); values.addElement(inputValue); } // Save the initialSelectionValue, if its Serializable. if(initialSelectionValue != null && initialSelectionValue instanceof Serializable) { values.addElement("initialSelectionValue"); values.addElement(initialSelectionValue); } s.writeObject(values); } private void readObject(ObjectInputStream s) throws IOException, ClassNotFoundException { ObjectInputStream.GetField f = s.readFields(); int newMessageType = f.get("messageType", 0); checkMessageType(newMessageType); messageType = newMessageType; int newOptionType = f.get("optionType", 0); checkOptionType(newOptionType); optionType = newOptionType; wantsInput = f.get("wantsInput", false); Vector<?> values = (Vector)s.readObject(); int indexCounter = 0; int maxCounter = values.size(); if(indexCounter < maxCounter && values.elementAt(indexCounter). equals("icon")) { icon = (Icon)values.elementAt(++indexCounter); indexCounter++; } if(indexCounter < maxCounter && values.elementAt(indexCounter). equals("message")) { message = values.elementAt(++indexCounter); indexCounter++; } if(indexCounter < maxCounter && values.elementAt(indexCounter). equals("options")) { options = (Object[])values.elementAt(++indexCounter); indexCounter++; } if(indexCounter < maxCounter && values.elementAt(indexCounter). equals("initialValue")) { initialValue = values.elementAt(++indexCounter); indexCounter++; } if(indexCounter < maxCounter && values.elementAt(indexCounter). equals("value")) { value = values.elementAt(++indexCounter); indexCounter++; } if(indexCounter < maxCounter && values.elementAt(indexCounter). equals("selectionValues")) { selectionValues = (Object[])values.elementAt(++indexCounter); indexCounter++; } if(indexCounter < maxCounter && values.elementAt(indexCounter). equals("inputValue")) { inputValue = values.elementAt(++indexCounter); indexCounter++; } if(indexCounter < maxCounter && values.elementAt(indexCounter). equals("initialSelectionValue")) { initialSelectionValue = values.elementAt(++indexCounter); indexCounter++; } if (getUIClassID().equals(uiClassID)) { byte count = JComponent.getWriteObjCounter(this); JComponent.setWriteObjCounter(this, --count); if (count == 0 && ui != null) { ui.installUI(this); } } }
Returns a string representation of this JOptionPane. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null.
Returns: a string representation of this JOptionPane
/** * Returns a string representation of this <code>JOptionPane</code>. * This method * is intended to be used only for debugging purposes, and the * content and format of the returned string may vary between * implementations. The returned string may be empty but may not * be <code>null</code>. * * @return a string representation of this <code>JOptionPane</code> */
protected String paramString() { String iconString = (icon != null ? icon.toString() : ""); String initialValueString = (initialValue != null ? initialValue.toString() : ""); String messageString = (message != null ? message.toString() : ""); String messageTypeString; if (messageType == ERROR_MESSAGE) { messageTypeString = "ERROR_MESSAGE"; } else if (messageType == INFORMATION_MESSAGE) { messageTypeString = "INFORMATION_MESSAGE"; } else if (messageType == WARNING_MESSAGE) { messageTypeString = "WARNING_MESSAGE"; } else if (messageType == QUESTION_MESSAGE) { messageTypeString = "QUESTION_MESSAGE"; } else if (messageType == PLAIN_MESSAGE) { messageTypeString = "PLAIN_MESSAGE"; } else messageTypeString = ""; String optionTypeString; if (optionType == DEFAULT_OPTION) { optionTypeString = "DEFAULT_OPTION"; } else if (optionType == YES_NO_OPTION) { optionTypeString = "YES_NO_OPTION"; } else if (optionType == YES_NO_CANCEL_OPTION) { optionTypeString = "YES_NO_CANCEL_OPTION"; } else if (optionType == OK_CANCEL_OPTION) { optionTypeString = "OK_CANCEL_OPTION"; } else optionTypeString = ""; String wantsInputString = (wantsInput ? "true" : "false"); return super.paramString() + ",icon=" + iconString + ",initialValue=" + initialValueString + ",message=" + messageString + ",messageType=" + messageTypeString + ",optionType=" + optionTypeString + ",wantsInput=" + wantsInputString; } /////////////////// // Accessibility support ///////////////////
Returns the AccessibleContext associated with this JOptionPane. For option panes, the AccessibleContext takes the form of an AccessibleJOptionPane. A new AccessibleJOptionPane instance is created if necessary.
Returns:an AccessibleJOptionPane that serves as the AccessibleContext of this AccessibleJOptionPane
/** * Returns the <code>AccessibleContext</code> associated with this JOptionPane. * For option panes, the <code>AccessibleContext</code> takes the form of an * <code>AccessibleJOptionPane</code>. * A new <code>AccessibleJOptionPane</code> instance is created if necessary. * * @return an AccessibleJOptionPane that serves as the * AccessibleContext of this AccessibleJOptionPane */
@BeanProperty(bound = false, expert = true, description = "The AccessibleContext associated with this option pane") public AccessibleContext getAccessibleContext() { if (accessibleContext == null) { accessibleContext = new AccessibleJOptionPane(); } return accessibleContext; }
This class implements accessibility support for the JOptionPane class. It provides an implementation of the Java Accessibility API appropriate to option pane user-interface elements.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans has been added to the java.beans package. Please see XMLEncoder.

/** * This class implements accessibility support for the * <code>JOptionPane</code> class. It provides an implementation of the * Java Accessibility API appropriate to option pane user-interface * elements. * <p> * <strong>Warning:</strong> * Serialized objects of this class will not be compatible with * future Swing releases. The current serialization support is * appropriate for short term storage or RMI between applications running * the same version of Swing. As of 1.4, support for long term storage * of all JavaBeans * has been added to the <code>java.beans</code> package. * Please see {@link java.beans.XMLEncoder}. */
@SuppressWarnings("serial") // Same-version serialization only protected class AccessibleJOptionPane extends AccessibleJComponent {
Get the role of this object.
See Also:
Returns:an instance of AccessibleRole describing the role of the object
/** * Get the role of this object. * * @return an instance of AccessibleRole describing the role of the object * @see AccessibleRole */
public AccessibleRole getAccessibleRole() { switch (messageType) { case ERROR_MESSAGE: case INFORMATION_MESSAGE: case WARNING_MESSAGE: return AccessibleRole.ALERT; default: return AccessibleRole.OPTION_PANE; } } } // inner class AccessibleJOptionPane }