sha1 in both php and java

<?php
  echo sha1('test');
  //a94a8fe5ccb19ba61c4c0873d391e987982fbbd3
?>

package demo;

import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/**
 *
 * @author gan068
 */
public class Sha1 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        System.out.println(sha1("test"));
        //a94a8fe5ccb19ba61c4c0873d391e987982fbbd3
    }

    public static String sha1(String str) {
        String hashStr = "";
        try {
            MessageDigest md = MessageDigest.getInstance("SHA-1");
            md.update(str.getBytes());
            BigInteger hash = new BigInteger(1, md.digest());
            hashStr = hash.toString(16);

        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        return hashStr;
    }
}