public abstract class ComponentAdapter extends Object implements ComponentListener
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.
ComponentEvent, ComponentListener, Tutorial: Writing a Component Listener
public ComponentAdapter()
public void componentResized(ComponentEvent e)
Invoked when the component's size changes.
componentResized in interface ComponentListener
public void componentMoved(ComponentEvent e)
Invoked when the component's position changes.
componentMoved in interface ComponentListener
public void componentShown(ComponentEvent e)
Invoked when the component has been made visible.
componentShown in interface ComponentListener
public void componentHidden(ComponentEvent e)
Invoked when the component has been made invisible.
componentHidden in interface ComponentListener
© 1993–2017, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.