public class AlphanumComparator
extends Object
implements Comparator<String>

The Alphanum Algorithm is an improved sorting algorithm for strings containing numbers. Instead of sorting numbers in ASCII order like a standard sort, this algorithm sorts numbers in numeric order.

The Alphanum Algorithm is discussed here

This library 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 2.1 of the License, or any later version.

This library 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 this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

This is an updated version with enhancements made by Daniel Migowski, Andre Bogus, and David Koelle

To use this class: Use the static "sort" method from the java.util.Collections class: Collections.sort(your list, new AlphanumComparator());