Java中定时器的使用

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
class MyTimerTask extends TimerTask{
    SimpleDateFormat dateFormat=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    @Override
    public void run() {
        // TODO Auto-generated method stub
        System.out.println(dateFormat.format(new Date()));
    }
    
}
public class Test {
    public static void main(String args[]){
        MyTimerTask myTimerTask=new MyTimerTask();
        Timer timer=new Timer();
        timer.schedule(myTimerTask,1000,1000);
        System.out.println("Main end.");
    }
}

运行结果：

Main end.
2013-12-04 14:18:57
2013-12-04 14:18:58
2013-12-04 14:18:59
2013-12-04 14:19:00
2013-12-04 14:19:01
2013-12-04 14:19:02
2013-12-04 14:19:03