Here you can find the source of byteToHex(byte[] raw)
public static String byteToHex(byte[] raw)
//package com.java2s; /*//from w w w.j a v a 2s. com * This file is part of Pustefix. * * Pustefix 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 2 of the License, or * (at your option) any later version. * * Pustefix 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 Pustefix; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ public class Main { public static String byteToHex(byte[] raw) { String hex_tab = "0123456789abcdef"; StringBuffer sb = new StringBuffer(); for (int i = 0; i < raw.length; i++) { byte b = raw[i]; sb.append(hex_tab.charAt((b & 0xF0) >> 4)); sb.append(hex_tab.charAt(b & 0xF)); } return sb.toString(); } }