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package java.awt.event;

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

Mouse events let you track when a mouse is pressed, released, clicked,
moved, dragged, when it enters a component, when it exits and
when a mouse wheel is moved.
 Extend this class to create a MouseEvent (including drag and motion events) or/and MouseWheelEvent listener and override the methods for the events of interest. (If you implement the MouseListener, MouseMotionListener 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 the extended class and then register it with a component using the component's addMouseListener addMouseMotionListener, addMouseWheelListener methods. The relevant method in the listener object is invoked and the MouseEvent or MouseWheelEvent is passed to it in following cases: 

when a mouse button is pressed, released, or clicked (pressed and  released)
when the mouse cursor enters or exits the component
when the mouse wheel rotated, or mouse moved or dragged

Author:
Carl Quinn, Andrei Dmitriev
See Also:
MouseEvent
MouseWheelEvent
MouseListener
MouseMotionListener
MouseWheelListener
Tutorial: Writing a Mouse Listener
Since:
1.1/**
 * An abstract adapter class for receiving mouse events.
 * The methods in this class are empty. This class exists as
 * convenience for creating listener objects.
 * <P>
 * Mouse events let you track when a mouse is pressed, released, clicked,
 * moved, dragged, when it enters a component, when it exits and
 * when a mouse wheel is moved.
 * <P>
 * Extend this class to create a {@code MouseEvent}
 * (including drag and motion events) or/and {@code MouseWheelEvent}
 * listener and override the methods for the events of interest. (If you implement the
 * {@code MouseListener},
 * {@code MouseMotionListener}
 * 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 the extended class and then register it with
 * a component using the component's {@code addMouseListener}
 * {@code addMouseMotionListener}, {@code addMouseWheelListener}
 * methods.
 * The relevant method in the listener object is invoked  and the {@code MouseEvent}
 * or {@code MouseWheelEvent}  is passed to it in following cases:
 * <ul>
 * <li>when a mouse button is pressed, released, or clicked (pressed and  released)
 * <li>when the mouse cursor enters or exits the component
 * <li>when the mouse wheel rotated, or mouse moved or dragged
 * </ul>
 *
 * @author Carl Quinn
 * @author Andrei Dmitriev
 *
 * @see MouseEvent
 * @see MouseWheelEvent
 * @see MouseListener
 * @see MouseMotionListener
 * @see MouseWheelListener
 * @see <a href="http://docs.oracle.com/javase/tutorial/uiswing/events/mouselistener.html">Tutorial: Writing a Mouse Listener</a>
 *
 * @since 1.1
 */
public abstract class MouseAdapter implements MouseListener, MouseWheelListener, MouseMotionListener {
    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public void mouseClicked(MouseEvent e) {}

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public void mousePressed(MouseEvent e) {}

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public void mouseReleased(MouseEvent e) {}

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public void mouseEntered(MouseEvent e) {}

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public void mouseExited(MouseEvent e) {}

    
{@inheritDoc}
Since:
1.6/**
     * {@inheritDoc}
     * @since 1.6
     */
    public void mouseWheelMoved(MouseWheelEvent e){}

    
{@inheritDoc}
Since:
1.6/**
     * {@inheritDoc}
     * @since 1.6
     */
    public void mouseDragged(MouseEvent e){}

    
{@inheritDoc}
Since:
1.6/**
     * {@inheritDoc}
     * @since 1.6
     */
    public void mouseMoved(MouseEvent e){}
}