ADS -- A Java package of algorithms and data structures for educational purposes. This software was originally created for the book Winder & Roberts, "Developing Java Software", Wiley. Copyright © 1997--2007 Russel Winder This file is part of ADS. ADS is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. ADS 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with ADS. If not, see . Russel Winder can be contacted by email at: russel@devjavasoft.org