Thread t1 = new Thread(){

           @Override

           public void run() {

               for (int i = 0; i < 10; i++) {

                   try {

                       Thread.sleep(1000);

                   } catch (InterruptedException e) {

                       e.printStackTrace();

                   }

                   ad++;

                   System.out.println(ad);

               }

           }

       };

       t1.setDaemon(true);

       t1.start();

       Thread.sleep(2000);

       System.out.println(ad);