Java tutorial
//package com.java2s; public class Main { /** * Creates a human readable representation of an array of bytes. * * @param bytes The bytes. * @return An string representation of the bytes. */ public static String toString(final byte[] bytes) { final StringBuilder builder = new StringBuilder(); builder.append("{ "); for (final byte b : bytes) { builder.append(String.format("%02X ", (byte) (0xFF & b))); } builder.append("}"); return builder.toString(); } }