Here you can find the source of copy(File src, File dst)
public static void copy(File src, File dst) throws IOException
//package com.java2s; /******************************************************************************* * Copyright (c) 2014,2015 Hideki Yatomi * All rights reserved. This program and the accompanying materials are made * available under the terms of the Eclipse Public License v1.0 which * accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html ******************************************************************************/ import java.io.*; import java.nio.file.*; public class Main { public static void copy(File src, File dst) throws IOException { Files.copy(src.toPath(), dst.toPath(), StandardCopyOption.REPLACE_EXISTING); }//from ww w . j a v a 2 s.com }