Java tutorial
//package com.java2s; /** * ================================================================================= * * BSD LICENCE (http://en.wikipedia.org/wiki/BSD_licenses) * * ARTIFACT='barchart-udt4';VERSION='1.0.2-SNAPSHOT';TIMESTAMP='2011-01-11_09-30-59'; * * Copyright (C) 2009-2011, Barchart, Inc. (http://www.barchart.com/) * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * * Neither the name of the Barchart, Inc. nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Developers: Andrei Pozolotin; * * ================================================================================= */ import java.nio.ByteBuffer; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import android.util.Log; public class Main { static long md5sum(String text) { byte[] defaultBytes = text.getBytes(); try { MessageDigest algorithm = MessageDigest.getInstance("MD5"); algorithm.reset(); algorithm.update(defaultBytes); byte digest[] = algorithm.digest(); ByteBuffer buffer = ByteBuffer.wrap(digest); return buffer.getLong(); } catch (NoSuchAlgorithmException e) { Log.e("udt", "md5 failed: " + e); return 0; } } }