001 /* KeyListener.java -- listen for keyboard presses
002 Copyright (C) 1999, 2002, 2005 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
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007 it under the terms of the GNU General Public License as published by
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009 any later version.
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020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
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026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
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036 exception statement from your version. */
037
038
039 package java.awt.event;
040
041 import java.util.EventListener;
042
043 /**
044 * This interface is for classes that wish to receive keyboard events. To
045 * watch a subset of these events, use a KeyAdapter.
046 *
047 * @author Aaron M. Renn (arenn@urbanophile.com)
048 * @see KeyAdapter
049 * @see KeyEvent
050 * @since 1.1
051 * @status updated to 1.4
052 */
053 public interface KeyListener extends EventListener
054 {
055 /**
056 * This method is called when a key is typed. A key is considered typed
057 * when it and all modifiers have been pressed and released, mapping to
058 * a single virtual key.
059 *
060 * @param event the <code>KeyEvent</code> indicating that a key was typed
061 */
062 void keyTyped(KeyEvent event);
063
064 /**
065 * This method is called when a key is pressed.
066 *
067 * @param event the <code>KeyEvent</code> indicating the key press
068 */
069 void keyPressed(KeyEvent event);
070
071 /**
072 * This method is called when a key is released.
073 *
074 * @param event the <code>KeyEvent</code> indicating the key release
075 */
076 void keyReleased(KeyEvent event);
077 } // interface KeyListener