Here you can find the source of readAll(InputStream in)
public static String readAll(InputStream in) throws IOException
//package com.java2s; /*//w ww . j av a 2 s. c o m * E? Copyright (C) 2014 Matt Peterson, Evan Welsh, and Jackson Isted. Contact * us at <a href="eflatlang@gmail.com">EFlat-Lang</a> * * This program is free software: you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free Software * Foundation, either version 3 of the License, or (at your option) any later * version. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see <http://www.gnu.org/licenses/> */ import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; public class Main { public static String readAll(InputStream in) throws IOException { StringBuffer sb = new StringBuffer(); BufferedReader reader = new BufferedReader(new InputStreamReader(in)); String line; while ((line = reader.readLine()) != null) { sb.append(line); sb.append('\n'); } return sb.toString(); } }