Here you can find the source of copyFile(File src, File dst)
public static void copyFile(File src, File dst) throws IOException, FileNotFoundException, SecurityException
//package com.java2s; /******************************************************************************* * Copyright 2012 EMBL-EBI, Hinxton outstation * //from w w w. j a va 2s . c om * 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(File src, File dst) throws IOException, FileNotFoundException, SecurityException { InputStream in = new FileInputStream(src); OutputStream out = new FileOutputStream(dst); // Transfer bytes from in to out byte[] buf = new byte[1024]; int len; while ((len = in.read(buf)) > 0) { out.write(buf, 0, len); } in.close(); out.close(); } }