Java tutorial
//package com.java2s; import java.io.*; public class Main { public static void copy(InputStream in, OutputStream out) throws IOException { byte[] buffer = new byte[1024 * 32]; int read; while ((read = in.read(buffer)) != -1) { out.write(buffer, 0, read); } } public static void copy(File src, File dst) throws IOException { InputStream in = null; OutputStream out = null; try { in = new FileInputStream(src); out = new FileOutputStream(dst); copy(in, out); } catch (IOException ex) { throw ex; } finally { close(in); close(out); } } public static void close(Closeable closeable) { try { if (closeable != null) { closeable.close(); } } catch (Exception x) { // Ignored } } }