Here you can find the source of readLine(DataInputStream in)
private static String readLine(DataInputStream in) throws IOException
//package com.java2s; /*/*from w ww .j a v a 2 s. c om*/ * Copyright (c) 2011-2016, Peter Abeles. All Rights Reserved. * * This file is part of BoofCV (http://boofcv.org). * * 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. */ import java.io.*; public class Main { private static String readLine(DataInputStream in) throws IOException { String s = ""; while (true) { int b = in.read(); if (b == '\n') return s; else s += (char) b; } } }