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The source code is released under:
GNU General Public License
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package com.jug6ernaut.android.utilites; //from w ww . ja v a2s . c o m /** * Created with IntelliJ IDEA. * User: williamwebb * Date: 1/11/13 * Time: 6:31 PM * To change this template use File | Settings | File Templates. */ public class ByteUtils { public static String byteArrayToHexString(byte[] b) { StringBuffer sb = new StringBuffer(b.length * 2); for (int i = 0; i < b.length; i++) { int v = b[i] & 0xff; if (v < 16) { sb.append('0'); } sb.append(Integer.toHexString(v)); } return sb.toString().toUpperCase(); } public static byte[] hexStringToByteArray(String s) { int len = s.length(); byte[] data = new byte[len / 2]; for (int i = 0; i < len; i += 2) { data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) + Character.digit(s.charAt(i + 1), 16)); } return data; } }