Java tutorial
//package com.java2s; /** * Copyright (C) 2013-2014 Project-Vethrfolnir * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ public class Main { /** * @param string * @return */ public static byte[] toByte(String string) { byte[] data = new byte[string.length() / 2]; int loc = 0; for (int i = 0; i < string.length(); i += 2) { int hex = Integer.decode("0x" + string.charAt(i) + "" + string.charAt(i + 1)); data[loc++] = (byte) hex; } return data; } }