Write code to calculate MD5 Hash for a String - Java java.lang

Java examples for java.lang:String Hash

  1. HOME
  2. Java
  3. java.lang
  4. String Hash

Requirements

Write code to calculate MD5 Hash for a String

Demo Code

//package com.java2s;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Main {
    public static void main(String[] argv) {
        String s = "java2s.com";
        System.out.println(md5(s));
    }/*from  w ww  .j  ava 2  s.  c  om*/

    public static String md5(String s) {
        try {
            // Create MD5 Hash
            MessageDigest digest = MessageDigest.getInstance("MD5");
            digest.update(s.getBytes());
            byte messageDigest[] = digest.digest();

            // Create Hex String
            StringBuffer hexString = new StringBuffer();
            for (int i = 0; i < messageDigest.length; i++)
                hexString.append(Integer
                        .toHexString(0xFF & messageDigest[i]));

            return hexString.toString();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }

        return "";
    }
}

Related Tutorials