Here you can find the source of toHexString(byte[] ba)
static public String toHexString(byte[] ba)
//package com.java2s; /**/*from w ww. jav a 2 s .co m*/ * Logback: the reliable, generic, fast and flexible logging framework. * Copyright (C) 1999-2013, QOS.ch. All rights reserved. * * This program and the accompanying materials are dual-licensed under * either the terms of the Eclipse Public License v1.0 as published by * the Eclipse Foundation * * or (per the licensee's choosing) * * under the terms of the GNU Lesser General Public License version 2.1 * as published by the Free Software Foundation. */ public class Main { static public String toHexString(byte[] ba) { StringBuffer sbuf = new StringBuffer(); for (byte b : ba) { String s = Integer.toHexString((int) (b & 0xff)); if (s.length() == 1) { sbuf.append('0'); } sbuf.append(s); } return sbuf.toString(); } }