Java Platform 1.2

Class WindowAdapter

Direct Known Subclasses:
BasicToolBarUI.FrameListener, JMenu.WinListener

public abstract class WindowAdapter
extends Object
implements WindowListener

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

Extend this class to create a WindowEvent listener and override the methods for the events of interest. (If you implement the WindowrListener 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 Window using the window's addWindowListener method. When the window's status changes by virtue of being opened, closed, activated or deactivated, iconified or deiconified, the relevant method in the listener object is invoked, and the WindowEvent is passed to it.

See Also:
WindowEvent, WindowListener, Tutorial: Writing a Window Listener, Reference: The Java Class Libraries (update file)

Constructor Summary
Method Summary
 void windowActivated(WindowEvent e)
          Invoked when a window is activated.
 void windowClosed(WindowEvent e)
          Invoked when a window has been closed.
 void windowClosing(WindowEvent e)
          Invoked when a window is in the process of being closed.
 void windowDeactivated(WindowEvent e)
          Invoked when a window is de-activated.
 void windowDeiconified(WindowEvent e)
          Invoked when a window is de-iconified.
 void windowIconified(WindowEvent e)
          Invoked when a window is iconified.
 void windowOpened(WindowEvent e)
          Invoked when a window has been opened.
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail


public WindowAdapter()
Method Detail


public void windowOpened(WindowEvent e)
Invoked when a window has been opened.
Specified by:
windowOpened in interface WindowListener


public void windowClosing(WindowEvent e)
Invoked when a window is in the process of being closed. The close operation can be overridden at this point.
Specified by:
windowClosing in interface WindowListener


public void windowClosed(WindowEvent e)
Invoked when a window has been closed.
Specified by:
windowClosed in interface WindowListener


public void windowIconified(WindowEvent e)
Invoked when a window is iconified.
Specified by:
windowIconified in interface WindowListener


public void windowDeiconified(WindowEvent e)
Invoked when a window is de-iconified.
Specified by:
windowDeiconified in interface WindowListener


public void windowActivated(WindowEvent e)
Invoked when a window is activated.
Specified by:
windowActivated in interface WindowListener


public void windowDeactivated(WindowEvent e)
Invoked when a window is de-activated.
Specified by:
windowDeactivated in interface WindowListener

Java Platform 1.2

Submit a bug or feature Version 1.2 of Java Platform API Specification
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