class?Req1?implements?Runnable{
???static?Req1?req1?=?new?Req1();
???static?int?i=0;
???@Override
???public?void?run()?{
??????for(int?j?=?0;j<10000;j++){
?????????i++;
??????}
???}

???public?static?void?main(String[]?args)?throws?InterruptedException?{
??????Thread?thread1?=?new?Thread(req1);
??????Thread?thread2?=?new?Thread(req1);
??????thread1.start();
??????thread2.start();
??????thread1.join();
??????thread2.join();
??????System.out.println(i);
???}
}