Java tutorial
//package com.java2s; /* chatter-bot-api Copyright (C) 2011 pierredavidbelanger@gmail.com This program 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. 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.math.BigInteger; import java.security.MessageDigest; public class Main { public static String md5(String input) throws Exception { MessageDigest md5 = MessageDigest.getInstance("MD5"); md5.update(input.getBytes("UTF-8")); BigInteger hash = new BigInteger(1, md5.digest()); return String.format("%1$032X", hash); } }