/* *    This program is free software; you can redistribute it and/or modify *    it under the terms of the GNU General Public License as published by *    the Free Software Foundation; either version 2 of the License, or *    (at your option) any later version. * *    This program 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 for more details. * *    You should have received a copy of the GNU General Public License *    along with this program; if not, write to the Free Software *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *//* *    Copyable.java *    Copyright (C) 1999 Eibe Frank * *//** * Interface implemented by classes that can produce "shallow" copies * of their objects. (As opposed to clone(), which is supposed to * produce a "deep" copy.) * * @author Eibe Frank (eibe@cs.waikato.ac.nz) * @version $Revision: 1.4 $ */public interface Copyable {  /**   * This method produces a shallow copy of an object.   * It does the same as the clone() method in Object, which also produces   * a shallow copy.   */  public Object copy();}