Java tutorial
//package com.java2s; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.nio.channels.FileChannel; public class Main { public static void copyFile(File src, File dst) throws IOException { FileInputStream in = new FileInputStream(src); FileOutputStream out = new FileOutputStream(dst); FileChannel inChannel = in.getChannel(); FileChannel outChannel = out.getChannel(); try { inChannel.transferTo(0, inChannel.size(), outChannel); } finally { if (inChannel != null) { inChannel.close(); } outChannel.close(); } in.close(); out.close(); } }