JDK8/Java8源码在线阅读

/*
 * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */

package javax.swing.event;

/**
 * An abstract adapter class for receiving internal frame events.
 * The methods in this class are empty. This class exists as
 * convenience for creating listener objects, and is functionally
 * equivalent to the WindowAdapter class in the AWT.
 * <p>
 * See <a href="https://docs.oracle.com/javase/tutorial/uiswing/events/internalframelistener.html">How to Write an Internal Frame Listener</a>
 * in <em>The Java Tutorial</em>
 *
 * @see InternalFrameEvent
 * @see InternalFrameListener
 * @see java.awt.event.WindowListener
 *
 * @author Thomas Ball
 */
public abstract class InternalFrameAdapter implements InternalFrameListener {
    /**
     * Invoked when an internal frame has been opened.
     */
    public void internalFrameOpened(InternalFrameEvent e) {}

    /**
     * Invoked when an internal frame is in the process of being closed.
     * The close operation can be overridden at this point.
     */
    public void internalFrameClosing(InternalFrameEvent e) {}

    /**
     * Invoked when an internal frame has been closed.
     */
    public void internalFrameClosed(InternalFrameEvent e) {}

    /**
     * Invoked when an internal frame is iconified.
     */
    public void internalFrameIconified(InternalFrameEvent e) {}

    /**
     * Invoked when an internal frame is de-iconified.
     */

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