Timer t=new Timer();
t.schedule(new MyTimeTask(),new Date(...),int 多久后重复执行任务(毫秒值));

TimerTask抽象类,要子类继承重写抽象方法


------------

		Calendar cal = Calendar.getInstance();
		cal.set(2017, 1, 15, 10, 54, 0);
		Date date = cal.getTime();

		SimpleDateFormat sdf=new SimpleDateFormat("YYYY年MM月dd日 HH时mm分ss秒");
		
		Timer t=new Timer();
		t.schedule(new TimerTask() {
			
			@Override
			public void run() {
				System.out.println("------------");
				System.out.println("hahaha");
			}
		}, new Date(2017-1900, 1, 15, 11, 05, 30), 2000);

		while(true){
			Thread.sleep(1000);
			System.out.println(sdf.format(new Date()));
		}