Codec Digest
import org.apache.commons.codec.digest.*; public class DigestUsage{ public static void main(String args[]){ DigestUsage codec = new DigestUsage(); try{ codec.start(); }catch(Exception e){ System.err.println(e); } } public void start(){ String hashData = "Hello World!!"; System.err.println("Hello World!! as MD5 16 element hash: " + new String(DigestUtils.md5(hashData))); System.err.println("Hello World!! as MD5 Hex hash: " + DigestUtils.md5Hex(hashData)); System.err.println("Hello World!! as SHA byte array hash: " + new String(DigestUtils.sha(hashData))); System.err.println("Hello World!! as SHA Hex hash: " + DigestUtils.shaHex(hashData)); } }