Here you can find the source of copyStream(InputStream in, OutputStream out)
public static void copyStream(InputStream in, OutputStream out) throws IOException
//package com.java2s; /* =============================================================================== * * Part of the InfoglueIDE Project /*from w ww. j a v a 2 s. c o m*/ * * =============================================================================== * * Copyright (C) Stefan Sik 2007 * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License version 2, as published by the * Free Software Foundation. See the file LICENSE.html for more information. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY, including 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. / 59 Temple * Place, Suite 330 / Boston, MA 02111-1307 / USA. * * =============================================================================== */ import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; public class Main { private static final int DEFAULT_CHUNKSIZE = 4096; public static void copyStream(InputStream in, OutputStream out, int chunkSize) throws IOException { byte b[] = new byte[chunkSize]; int inumber = 0; int cnt = 0; while (true) { inumber = in.read(b); cnt += inumber; if (inumber <= 0) break; out.write(b, 0, inumber); out.flush(); } } public static void copyStream(InputStream in, OutputStream out) throws IOException { copyStream(in, out, DEFAULT_CHUNKSIZE); } }