java.awt.event
Interface KeyListener
- public abstract interface KeyListener
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 (pressedn and released).
The relevant method in the listener object is then invoked, and the KeyEvent is
passed to it.
keyPressed
public void keyPressed(KeyEvent ke)
- Invoked when a key has been pressed.
keyReleased
public void keyReleased(KeyEvent ke)
- Invoked when a key has been released.
keyTyped
public void keyTyped(KeyEvent ke)
- Invoked when a key has been typed.