Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    public static byte[] hexStringToBytes(String s) {
        if (s == null || s.length() == 0)
            return null;
        int len = s.length();
        if (len % 2 != 0) {
            s = '0' + s;
            len++;
        }
        byte[] data = new byte[len / 2];
        for (int i = 0; i < len; i += 2) {
            data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) + Character.digit(s.charAt(i + 1), 16));
        }
        return data;
    }
}