/* Copyright (C) 1998, 1999 Cygnus Solutions This file is part of libgcj. This software is copyrighted work licensed under the terms of the Libgcj License. Please consult the file "LIBGCJ_LICENSE" for details. */ package java.util; /** * @author Warren Levy * @date August 25, 1998. */ /* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3 * "The Java Language Specification", ISBN 0-201-63451-1 * plus online API docs for JDK 1.2 beta from http://www.javasoft.com. * Status: Believed complete and correct */ public interface Observer { public void update(Observable observed, Object arg); }