Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Main {
    public static String md5(String string) {
        byte[] hash = null;
        try {
            hash = string.getBytes("UTF-8");
        } catch (UnsupportedEncodingException e) {
            throw new RuntimeException("Huh,UTF-8 should be supported?", e);
        }
        return computeMD5(hash);
    }

    public static String computeMD5(byte[] input) {
        try {
            MessageDigest md = MessageDigest.getInstance("MD5");
            md.update(input, 0, input.length);
            byte[] md5bytes = md.digest();

            StringBuffer hexString = new StringBuffer();
            for (int i = 0; i < md5bytes.length; i++) {
                String hex = Integer.toHexString(0xff & md5bytes[i]);
                if (hex.length() == 1)
                    hexString.append('0');
                hexString.append(hex);
            }
            return hexString.toString();
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException(e);
        }
    }
}