java.awt.event.MouseAdapter Maven / Gradle / Ivy
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This work corresponds to the API signatures of JSR 217: Personal Basis
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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,
* when it enters a component, and when it exits.
* (To track mouse moves and mouse drags, use the MouseMotionAdapter.)
*
* Extend this class to create a MouseEvent listener
* and override the methods for the events of interest. (If you implement the
* MouseListener 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
* method. When a mouse button is pressed, released, or clicked (pressed and
* released), or when the mouse cursor enters or exits the component,
* the relevant method in the listener object is invoked
* and the MouseEvent is passed to it.
*
* @author Carl Quinn
* @version 1.8 08/02/97
*
* @see MouseEvent
* @see MouseListener
* @see Tutorial: Writing a Mouse Listener
* @see Reference: The Java Class Libraries (update file)
*
* @since 1.1
*/
public abstract class MouseAdapter implements MouseListener
{
public MouseAdapter() { }
/**
* Invoked when the mouse has been clicked on a component.
*/
public void mouseClicked(MouseEvent e) { }
/**
* Invoked when a mouse button has been pressed on a component.
*/
public void mousePressed(MouseEvent e) { }
/**
* Invoked when a mouse button has been released on a component.
*/
public void mouseReleased(MouseEvent e) { }
/**
* Invoked when the mouse enters a component.
*/
public void mouseEntered(MouseEvent e) { }
/**
* Invoked when the mouse exits a component.
*/
public void mouseExited(MouseEvent e) { }
}