1 /*
2 * Copyright 1996-2006 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package java.awt.event;
27
28 import java.util.EventListener;
29
30 /**
31 * The listener interface for receiving item events.
32 * The class that is interested in processing an item event
33 * implements this interface. The object created with that
34 * class is then registered with a component using the
35 * component's <code>addItemListener</code> method. When an
36 * item-selection event occurs, the listener object's
37 * <code>itemStateChanged</code> method is invoked.
38 *
39 * @author Amy Fowler
40 *
41 * @see java.awt.ItemSelectable
42 * @see ItemEvent
43 * @see <a href="http://java.sun.com/docs/books/tutorial/post1.0/ui/itemlistener.html">Tutorial: Writing an Item Listener</a>
44 *
45 * @since 1.1
46 */
47 public interface ItemListener extends EventListener {
48
49 /**
50 * Invoked when an item has been selected or deselected by the user.
51 * The code written for this method performs the operations
52 * that need to occur when an item is selected (or deselected).
53 */
54 void itemStateChanged(ItemEvent e);
55
56 }
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