Here you can find the source of writeStreamInFile(File f, InputStream in)
public static void writeStreamInFile(File f, InputStream in) throws Exception
//package com.java2s; /*//from w ww.j a v a 2 s.c om Copyright (C) 2007-2011 BlueXML - www.bluexml.com 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.File; import java.io.FileOutputStream; import java.io.InputStream; public class Main { public static void writeStreamInFile(File f, InputStream in) throws Exception { FileOutputStream fout = null; byte[] buffer = new byte[4096]; // Buffer 4K at a time (you can // change this). int bytesRead; fout = new FileOutputStream(f); while ((bytesRead = in.read(buffer)) >= 0) { fout.write(buffer, 0, bytesRead); } // InputStream is consumed we close it in.close(); } }