2362N/A * Copyright (c) 1996, 2006, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * An abstract adapter class for receiving keyboard events. 0N/A * The methods in this class are empty. This class exists as 0N/A * convenience for creating listener objects. 0N/A * Extend this class to create a <code>KeyEvent</code> listener 0N/A * and override the methods for the events of interest. (If you implement the 0N/A * <code>KeyListener</code> interface, you have to define all of 0N/A * the methods in it. This abstract class defines null methods for them 0N/A * all, so you can only have to define methods for events you care about.) 0N/A * Create a listener object using the extended class and then register it with 0N/A * a component using the component's <code>addKeyListener</code> 0N/A * method. When a key is pressed, released, or typed, 0N/A * the relevant method in the listener object is invoked, 0N/A * and the <code>KeyEvent</code> is passed to it. 0N/A * @author Carl Quinn 0N/A * Invoked when a key has been typed. 0N/A * This event occurs when a key press is followed by a key release. 0N/A * Invoked when a key has been pressed. 0N/A * Invoked when a key has been released.