MD5 in java

import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException; public class MD5
{
public static String getMD5(String input)
{
try
{
MessageDigest   md=MessageDigest.getInstance("MD5"); byte[] messageDigest = md.digest(input.getBytes());
BigInteger number = new BigInteger(1, messageDigest);
String hashtext = number.toString(16);
// Now we need to zero pad it if you actually want the full 32 chars.
while (hashtext.length() < 32)
{
hashtext = "0" + hashtext;
}
return hashtext;
}
catch (NoSuchAlgorithmException e)
{
throw new RuntimeException(e);
} }
public static void main(String[] args) throws NoSuchAlgorithmException
{
String s="hello world";
System.out.println("your hashcode generated by MD5 is:"+getMD5(s));
}
}