Here you can find the source of copyLarge(InputStream input, OutputStream output, byte[] buffer)
public static long copyLarge(InputStream input, OutputStream output, byte[] buffer) throws IOException
//package com.java2s; /*//from w w w. j a v a 2 s . c o m * Copyright (C) 2012 B3Partners B.V. * * 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.IOException; import java.io.InputStream; import java.io.OutputStream; public class Main { public static long copyLarge(InputStream input, OutputStream output, byte[] buffer) throws IOException { long count = 0; int n = 0; while (-1 != (n = input.read(buffer))) { output.write(buffer, 0, n); count += n; } return count; } }