Java tutorial
//package com.java2s; public class Main { public static String scanByteToHexString(byte[] scanRecord) { StringBuilder stringBuilder = new StringBuilder(); for (int i = 0; i < scanRecord.length; i++) { int v = scanRecord[i] & 0xFF; String hv = Integer.toHexString(v); if (hv.length() < 2) { stringBuilder.append(0); } stringBuilder.append(hv); } return stringBuilder.toString(); } }