Here you can find the source of toBinaryString(byte b)
static public String toBinaryString(byte b)
//package com.java2s; /**// w ww .java2 s. co m * Sapelli data collection platform: http://sapelli.org * * Copyright 2012-2016 University College London - ExCiteS group * * 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 { static public String toBinaryString(byte b) { String str = ""; for (int i = 7; i >= 0; i--) str += ((b & (1 << i)) != 0) ? "1" : "0"; return str; } }