Here you can find the source of printByteArray(byte[] bytes)
private static String printByteArray(byte[] bytes)
//package com.java2s; /*/*from ww w.j a v a 2 s. c o m*/ * Copyright (c) 2017-2030, Sven Augustus (svenaugustus@outlook.com). * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ public class Main { private static String printByteArray(byte[] bytes) { StringBuilder stringBuilder = new StringBuilder(bytes.length); stringBuilder.append("length=").append(bytes.length).append("["); for (int i = 0; i < bytes.length; i++) { stringBuilder.append(bytes[i]); } stringBuilder.append("]"); return stringBuilder.toString(); } }