Here you can find the source of base16Encode(byte[] data)
public static String base16Encode(byte[] data)
//package com.java2s; /*// w w w . j a va 2s . c om Copyright 2005-2015, Olivier PETRUCCI. This file is part of Areca. Areca 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 2 of the License, or (at your option) any later version. Areca 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 Areca; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ public class Main { /** * Return a base 16 String representation of the byte[] passed as argument */ public static String base16Encode(byte[] data) { if (data == null) { return null; } StringBuffer sb = new StringBuffer(); for (int i = 0; i < data.length; i++) { int d = data[i]; String s = Integer.toString(d + 128, 16); if (s.length() < 2) { sb.append("0"); } sb.append(s); } return sb.toString(); } }