Here you can find the source of hexIn(String s)
public static byte[] hexIn(String s)
//package com.java2s; /**/*from w ww .j a v a2 s . c om*/ * Copyright (C) 2012 nibbles.it * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 3 of the License, or (at your option) any * later version. * * This library 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 Lesser General Public License for more * details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ import javax.xml.bind.DatatypeConverter; public class Main { /** * Helper method to convert strings like: "F0A43205", to actual byte array * for easier testing. */ public static byte[] hexIn(String s) { return DatatypeConverter.parseHexBinary(s); } }