Main.java Source code

Introduction

Here is the source code for Main.java

Source

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

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

public class Main {
    private static final int MASK_BYTE_HIGH_FOUR_BIT = 0xf0;
    private static final int MASK_BYTE_LOW_FOUR_BIT = 0x0f;
    private static final char[] HEX_DIGITS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd',
            'e', 'f' };

    public static String GetMd5(final String s) {
        try {
            final MessageDigest digest = MessageDigest.getInstance("MD5");
            digest.update(s.trim().getBytes());
            final byte[] messageDigset = digest.digest();
            return Bytes2Hex(messageDigset);
        } catch (final NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        return s;
    }

    public static String Bytes2Hex(final byte[] bytes) {
        final StringBuilder sb = new StringBuilder(bytes.length * 2);
        for (final byte element : bytes) {
            sb.append(HEX_DIGITS[(element & MASK_BYTE_HIGH_FOUR_BIT) >>> 4]);
            sb.append(HEX_DIGITS[(element & MASK_BYTE_LOW_FOUR_BIT)]);
        }
        return sb.toString();
    }
}