java 定时器(任意时间)Timer

public class test {
public static void main(String[] args) throws Exception {

  final long PERIOD_DAY = 24 * 60 * 60 * 1000;  

        Calendar calendar = Calendar.getInstance();  
        calendar.set(Calendar.HOUR_OF_DAY, 10); //开始执行时间  
        calendar.set(Calendar.MINUTE, 00);  
        calendar.set(Calendar.SECOND, 0);  
        Date date=calendar.getTime(); 
        Timer timer = new Timer();

        timer.scheduleAtFixedRate(new RemindTask(), date, PERIOD_DAY);

}

}

public class RemindTask extends TimerTask  {


    @Override
    public void run() {
        // TODO Auto-generated method stub
        System.err.println("job");
    }


}