Here you can find the source of inputStreamToString(InputStream is)
public static String inputStreamToString(InputStream is) throws IOException
//package com.java2s; /*/* w w w.j ava 2 s.c om*/ * This file is part of Arduino. * * Copyright 2015 Arduino LLC (http://www.arduino.cc/) * * Arduino 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 2 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, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * As a special exception, you may use this file as part of a free software * library without restriction. Specifically, if other files instantiate * templates or use macros or inline functions from this file, or you compile * this file and link it with other files to produce an executable, this * file does not by itself cause the resulting executable to be covered by * the GNU General Public License. This exception does not however * invalidate any other reasons why the executable file might be covered by * the GNU General Public License. */ import java.io.*; public class Main { public static String inputStreamToString(InputStream is) throws IOException { StringWriter sw = new StringWriter(); BufferedReader reader = new BufferedReader( new InputStreamReader(is)); String line; try { while ((line = reader.readLine()) != null) { sw.append(line).append('\n'); } return sw.toString(); } finally { is.close(); } } }