- Direct Known Subclasses:
public abstract class KeyAdapter extends Object implements KeyListenerAn abstract adapter class for receiving keyboard events. The methods in this class are empty. This class exists as convenience for creating listener objects.
Extend this class to create a
KeyEventlistener and override the methods for the events of interest. (If you implement the
KeyListenerinterface, 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 component using the component's
addKeyListenermethod. When a key is pressed, released, or typed, the relevant method in the listener object is invoked, and the
KeyEventis passed to it.
public void keyTyped(KeyEvent e)Invoked when a key has been typed. This event occurs when a key press is followed by a key release.
public void keyPressed(KeyEvent e)Invoked when a key has been pressed.