Java--定时

 TimerTask task = new TimerTask() {

             @Override
             public void run() {
                 // TODO Auto-generated method stub
                 synchronized (lock) {
                     lock.notify();
                 }
             }
         };
         Timer timer = new Timer();
         long delay = 0;
         long intevalPeriod = 1000;
         timer.schedule(task, delay, intevalPeriod);