Here you can find the source of intToBits(int no)
public static byte[] intToBits(int no)
//package com.java2s; /******************************************************************************* * Copyright (c) 2015 FRESCO (http://github.com/aicis/fresco). * * This file is part of the FRESCO project. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE./*from w ww . j a v a2 s . co m*/ * * FRESCO uses SCAPI - http://crypto.biu.ac.il/SCAPI, Crypto++, Miracl, NTL, * and Bouncy Castle. Please see these projects for any further licensing issues. *******************************************************************************/ public class Main { public static byte[] intToBits(int no) { return intToBits(no, 32); } public static byte[] intToBits(int no, int amountOfBitsUsed) { byte[] res = new byte[amountOfBitsUsed]; for (int i = 0; i < amountOfBitsUsed; i++) { res[amountOfBitsUsed - i - 1] = (byte) ((no >> i) & 0x00000001); } return res; } }