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Class java.awt.event.KeyAdapter
Inherited members: ShowHide
Deprecated: ShowHide
View: ClientSubclassPackageImplementation
java.awt.event

Class KeyAdapter

  • java.lang.Object
    • java.awt.event.KeyAdapter
  • All Implemented Interfaces:
    KeyListener, java.util.EventListener
    public abstract class KeyAdapter extends java.lang.Object implements KeyListener
    An 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 KeyEvent listener and override the methods for the events of interest. (If you implement the KeyListener 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 component using the component's addKeyListener method. When a key is pressed, released, or typed, the relevant method in the listener object is invoked, and the KeyEvent is passed to it.

    Since:
    1.1
    See Also:
    KeyEvent, KeyListener, Tutorial: Writing a Key Listener
    • Constructors 
      Constructor and Description
      Ordinary member indicator KeyAdapter Reveal DetailHide Detail
      KeyAdapter()
       
      public KeyAdapter()
    • Methods 
      Modifier and Type Method and Description
      Ordinary member indicator keyPressed Reveal DetailHide Detail
      void keyPressed(KeyEvent e)
      Invoked when a key has been pressed.
      public void keyPressed(KeyEvent e)
      Invoked when a key has been pressed.
      Specified by:
      keyPressed in interface KeyListener
      Ordinary member indicator keyReleased Reveal DetailHide Detail
      void keyReleased(KeyEvent e)
      Invoked when a key has been released.
      public void keyReleased(KeyEvent e)
      Invoked when a key has been released.
      Specified by:
      keyReleased in interface KeyListener
      Ordinary member indicator keyTyped Reveal DetailHide Detail
      void keyTyped(KeyEvent e)
      Invoked when a key has been typed.
      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.
      Specified by:
      keyTyped in interface KeyListener
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
This document was created by Dulcet from the OpenJDK sources. Copyright © 1993, 2012 Oracle and/or its affiliates. All rights reserved.

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