public class Download {

    /**
     *
     * @param fileUrl an absolute url the downloading file
     * @throws IOException
     */
    public static void downloadFile(String fileUrl)
            throws IOException, InterruptedException {
        String links[] = new String[3];
        links[0] = "https://www.sitebuilderreport.com/assets/facebook-stock-up-08c6c9a855df26a3b13a34ac62bb75cc.jpg";
        links[1] = "https://www.bigstockphoto.com/images/homepage/2016_bigstock_picks.jpg";
        links[2] = "https://www.bigstockphoto.com/images/homepage/2016_bigstock_video.jpg";

//        ExecutorService pool = Executors.newFixedThreadPool(links.length);
//        for (String link : links) {
//            String fileName = link.substring(link.lastIndexOf("/")+1);
//            pool.submit(new ThreadDownload(link));
////            new Thread(new ThreadDownload(link), fileName).start();
//        }
//        pool.shutdown();
//        pool.awaitTermination(Long.MAX_VALUE, TimeUnit.MILLISECONDS);
    }