Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Main {
    /**
     * @param s String to MD5 hash
     * @return MD5 hashed string
     */
    public static String md5(String s) {
        if (s == null) {
            return "";
        }
        try {
            // Create MD5 Hash
            MessageDigest digest = java.security.MessageDigest.getInstance("MD5");
            digest.update(s.getBytes());
            byte[] messageDigest = digest.digest();
            return bytesToHex(messageDigest);
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        return "";
    }

    /**
     * @param data Byte array to convert to hex
     * @return Hex string
     */
    public static String bytesToHex(byte[] data) {
        if (data == null) {
            return null;
        }

        int len = data.length;
        String str = "";
        for (int i = 0; i < len; i++) {
            if ((data[i] & 0xFF) < 16) {
                str = str + "0" + java.lang.Integer.toHexString(data[i] & 0xFF);
            } else {
                str = str + java.lang.Integer.toHexString(data[i] & 0xFF);
            }
        }
        return str;
    }
}