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package java.awt.event;


An abstract adapter class for receiving component events.
The methods in this class are empty. This class exists as
convenience for creating listener objects.


Extend this class to create a ComponentEvent listener
and override the methods for the events of interest. (If you implement the
ComponentListener interface, you have to define all of
the methods in it. This abstract class defines null methods for them
all, so you can only have to define methods for events you care about.)


Create a listener object using your class and then register it with a
component using the component's addComponentListener
method. When the component's size, location, or visibility
changes, the relevant method in the listener object is invoked,
and the ComponentEvent is passed to it.

Author:Carl Quinn
See Also:
Since:1.1
/**
 * An abstract adapter class for receiving component events.
 * The methods in this class are empty. This class exists as
 * convenience for creating listener objects.
 * <P>
 * Extend this class to create a <code>ComponentEvent</code> listener
 * and override the methods for the events of interest. (If you implement the
 * <code>ComponentListener</code> interface, you have to define all of
 * the methods in it. This abstract class defines null methods for them
 * all, so you can only have to define methods for events you care about.)
 * <P>
 * Create a listener object using your class and then register it with a
 * component using the component's <code>addComponentListener</code>
 * method. When the component's size, location, or visibility
 * changes, the relevant method in the listener object is invoked,
 * and the <code>ComponentEvent</code> is passed to it.
 *
 * @see ComponentEvent
 * @see ComponentListener
 * @see <a href="http://java.sun.com/docs/books/tutorial/post1.0/ui/componentlistener.html">Tutorial: Writing a Component Listener</a>
 *
 * @author Carl Quinn
 * @since 1.1
 */
public abstract class ComponentAdapter implements ComponentListener {
    
Invoked when the component's size changes.

/**
     * Invoked when the component's size changes.
     */
    public void componentResized(ComponentEvent e) {}

    
Invoked when the component's position changes.

/**
     * Invoked when the component's position changes.
     */
    public void componentMoved(ComponentEvent e) {}

    
Invoked when the component has been made visible.

/**
     * Invoked when the component has been made visible.
     */
    public void componentShown(ComponentEvent e) {}

    
Invoked when the component has been made invisible.

/**
     * Invoked when the component has been made invisible.
     */
    public void componentHidden(ComponentEvent e) {}
}