Here you can find the source of copyFile(File source, File destination)
private static void copyFile(File source, File destination) throws IOException
//package com.java2s; /**/*from w ww .j av a 2 s . c o m*/ * Copyright 2014 Joshua Asbury (@theoriginalbit) * * 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.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.nio.channels.FileChannel; public class Main { /** * Copies a file from source to destination */ private static void copyFile(File source, File destination) throws IOException { FileInputStream inputStream = new FileInputStream(source); FileOutputStream outputStream = new FileOutputStream(destination); FileChannel sourceChannel = inputStream.getChannel(); FileChannel targetChannel = outputStream.getChannel(); sourceChannel.transferTo(0, sourceChannel.size(), targetChannel); sourceChannel.close(); targetChannel.close(); inputStream.close(); outputStream.close(); } }