Here you can find the source of copyFile(InputStream in, OutputStream out)
public static void copyFile(InputStream in, OutputStream out) throws IOException
//package com.java2s; /**/*w w w.j a v a2 s. c om*/ * Copyright (C) 2012 Hyperionics Technology LLC <http://www.hyperionics.com> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.*; public class Main { public static void copyFile(InputStream in, OutputStream out) throws IOException { byte[] buffer = new byte[1024]; int read; while ((read = in.read(buffer)) != -1) { out.write(buffer, 0, read); } out.flush(); } public static boolean copyFile(File fin, File fout) { FileInputStream in = null; FileOutputStream out = null; try { in = new FileInputStream(fin); out = new FileOutputStream(fout); copyFile(in, out); in.close(); out.close(); } catch (IOException e) { if (in != null) try { in.close(); } catch (IOException e2) { } if (out != null) try { out.close(); } catch (IOException e3) { } return false; } return true; } }