Time类

  public class Demo_Timer {
        /**
         * @param args
         * 计时器
         * @throws InterruptedException 
         */
        public static void main(String[] args) throws InterruptedException {
            Timer t = new Timer();
            t.schedule(new MyTimerTask(), new Date(114,9,15,10,54,20),3000);

            while(true) {
                System.out.println(new Date());
                Thread.sleep(1000);
            }
        }
    }
    class MyTimerTask extends TimerTask {
        @Override
        public void run() {
            System.out.println("起床背英语单词");
        }

    }