WindowAdapter (Sample Document)

java.lang.Object
- java.awt.event.WindowAdapter

All Implemented Interfaces:

WindowFocusListener, WindowListener, WindowStateListener, java.util.EventListener

public abstract class WindowAdapter extends java.lang.Object implements WindowListener, WindowStateListener, WindowFocusListener

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 WindowListener 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.

Since:

1.1

See Also:
WindowEvent, WindowListener, Tutorial: Writing a Window Listener

Constructor Summary

Constructors
Constructor and Description

WindowAdapter()

Constructors
Constructor and Description
`WindowAdapter()`

Method Summary

Methods
Modifier and Type	Method and Description
`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`	`windowGainedFocus(WindowEvent e)` Invoked when the Window is set to be the focused Window, which means that the Window, or one of its subcomponents, will receive keyboard events.
`void`	`windowIconified(WindowEvent e)` Invoked when a window is iconified.
`void`	`windowLostFocus(WindowEvent e)` Invoked when the Window is no longer the focused Window, which means that keyboard events will no longer be delivered to the Window or any of its subcomponents.
`void`	`windowOpened(WindowEvent e)` Invoked when a window has been opened.
`void`	`windowStateChanged(WindowEvent e)` Invoked when a window state is changed.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - WindowAdapter
    
    public WindowAdapter()
- Method Detail
  - windowOpened
    
    public void windowOpened(WindowEvent e)
    
    Invoked when a window has been opened.
    
    Specified by:
    
    windowOpened in interface WindowListener
  - windowClosing
    
    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
  - windowClosed
    
    public void windowClosed(WindowEvent e)
    
    Invoked when a window has been closed.
    
    Specified by:
    
    windowClosed in interface WindowListener
  - windowIconified
    
    public void windowIconified(WindowEvent e)
    
    Invoked when a window is iconified.
    
    Specified by:
    
    windowIconified in interface WindowListener
    
    See Also:
    Frame.setIconImage(java.awt.Image)
  - windowDeiconified
    
    public void windowDeiconified(WindowEvent e)
    
    Invoked when a window is de-iconified.
    
    Specified by:
    
    windowDeiconified in interface WindowListener
  - windowActivated
    
    public void windowActivated(WindowEvent e)
    
    Invoked when a window is activated.
    
    Specified by:
    
    windowActivated in interface WindowListener
  - windowDeactivated
    
    public void windowDeactivated(WindowEvent e)
    
    Invoked when a window is de-activated.
    
    Specified by:
    
    windowDeactivated in interface WindowListener
  - windowStateChanged
    
    public void windowStateChanged(WindowEvent e)
    
    Invoked when a window state is changed.
    
    Specified by:
    
    windowStateChanged in interface WindowStateListener
    
    Since:
    
    1.4
  - windowGainedFocus
    
    public void windowGainedFocus(WindowEvent e)
    
    Invoked when the Window is set to be the focused Window, which means that the Window, or one of its subcomponents, will receive keyboard events.
    
    Specified by:
    
    windowGainedFocus in interface WindowFocusListener
    
    Since:
    
    1.4
  - windowLostFocus
    
    public void windowLostFocus(WindowEvent e)
    
    Invoked when the Window is no longer the focused Window, which means that keyboard events will no longer be delivered to the Window or any of its subcomponents.
    
    Specified by:
    
    windowLostFocus in interface WindowFocusListener
    
    Since:
    
    1.4

Class WindowAdapter

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

WindowAdapter

Method Detail

windowOpened

windowClosing

windowClosed

windowIconified

windowDeiconified

windowActivated

windowDeactivated

windowStateChanged

windowGainedFocus

windowLostFocus