Java tutorial
//package com.java2s; /* * Copyright 2010 Bruno de Carvalho * * 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 { /** * Get a byte array in a printable binary form. * * @param bytes The bytes to be writen. * @return A String representation of the bytes. */ public static String writeBits(byte[] bytes) { StringBuilder stringBuilder = new StringBuilder(); for (int i = 0; i < bytes.length; i++) { // New line every 4 bytes if ((i % 4) == 0) { stringBuilder.append("\n"); } stringBuilder.append(writeBits(bytes[i])).append(" "); } return stringBuilder.toString(); } /** * Get a byte in a printable binary form. * * @param b The byte to be writen. * @return A String representation of the byte. */ public static String writeBits(byte b) { StringBuffer stringBuffer = new StringBuffer(); int bit; for (int i = 7; i >= 0; i--) { bit = (b >>> i) & 0x01; stringBuffer.append(bit); } return stringBuffer.toString(); } }