/* Perform this runnable code every 5 seconds  in this example*/
   Runnable runnable = new Runnable() {
            public void run() {
                // task to run goes here
                System.out.println("Hello !!");
            }
        };
        ScheduledExecutorService service = Executors
                .newSingleThreadScheduledExecutor();
        service.scheduleAtFixedRate(runnable, 0, 5, TimeUnit.SECONDS);