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    1   /*
    2    * Copyright (c) 1996, Oracle and/or its affiliates. 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.  Oracle designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   22    * or visit www.oracle.com if you need additional information or have any
   23    * questions.
   24    */
   25   
   26   package java.beans;
   27   
   28   /**
   29    * A "PropertyChange" event gets fired whenever a bean changes a "bound"
   30    * property.  You can register a PropertyChangeListener with a source
   31    * bean so as to be notified of any bound property updates.
   32    */
   33   
   34   public interface PropertyChangeListener extends java.util.EventListener {
   35   
   36       /**
   37        * This method gets called when a bound property is changed.
   38        * @param evt A PropertyChangeEvent object describing the event source
   39        *          and the property that has changed.
   40        */
   41   
   42       void propertyChange(PropertyChangeEvent evt);
   43   
   44   }

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