Java tutorial
//package com.java2s; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; public class Main { public static void copyFile(InputStream in, OutputStream out) throws IOException { byte[] buffer = new byte[1024]; while (true) { int read = in.read(buffer); if (read != -1) { out.write(buffer, 0, read); } else { return; } } } }