JavaTM 2 Platform Std. Ed. v1.6.0
java.awt.event
Interface KeyListener
- All Superinterfaces:
- EventListener
- All Known Implementing Classes:
- AWTEventMulticaster, BasicComboBoxUI.KeyHandler, BasicComboPopup.InvocationKeyHandler, BasicTableUI.KeyHandler, BasicTreeUI.KeyHandler, KeyAdapter
public interface KeyListener - extends EventListener
The listener interface for receiving keyboard events (keystrokes).
The class that is interested in processing a keyboard event
either implements this interface (and all the methods it
contains) or extends the abstract KeyAdapter class
(overriding only the methods of interest).
The listener object created from that class is then registered with a
component using the component's addKeyListener
method. A keyboard event is generated when a key is pressed, released,
or typed. The relevant method in the listener
object is then invoked, and the KeyEvent is passed to it.
- Since:
- 1.1
- See Also:
KeyAdapter ,
KeyEvent ,
Tutorial: Writing a Key Listener
keyTyped
void keyTyped(KeyEvent e)
- Invoked when a key has been typed.
See the class description for
KeyEvent for a definition of
a key typed event.
keyPressed
void keyPressed(KeyEvent e)
- Invoked when a key has been pressed.
See the class description for
KeyEvent for a definition of
a key pressed event.
keyReleased
void keyReleased(KeyEvent e)
- Invoked when a key has been released.
See the class description for
KeyEvent for a definition of
a key released event.
Copyright 2003 Sun Microsystems, Inc. All rights reserved
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