Java tutorial
//package com.java2s; /* * Copyright (C) 2013 Peng fei Pan <sky@xiaopan.me> * * 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 { public static String byteToBit(byte... bytes) { StringBuffer sb = new StringBuffer(); int z, len; String str; for (int w = 0; w < bytes.length; w++) { z = bytes[w]; z |= 256; str = Integer.toBinaryString(z); len = str.length(); sb.append(str.substring(len - 8, len)); } return sb.toString(); } }