Timer 定时器

import java.util.Timer;
import java.util.TimerTask;

public class MyTimer {
    public static void main(String[] args) {
        System.out.println("1");

        //执行一次
        //1
//        new Reminder1(3);


        //循环执行任务
        new Reminder2();
        System.out.println("3");

    }

    public static class Reminder2 {
        Integer cacheTime = 3000;
        Timer timer;

        public Reminder2() {
            timer = new Timer();
            timer.schedule(new TimerTask() {
                @Override
                public void run() {
                    System.out.println("2");
                }
           //延迟时间,执行间隔时间
            }, 100, cacheTime);
        }

    }


    public static class Reminder1 {
        Timer timer;

        public Reminder1(int sec) {
            timer = new Timer();
            timer.schedule(new TimerTask() {
                @Override
                public void run() {
                    System.out.println("2");
                    timer.cancel();
                }
            }, sec * 1000);
        }
    }


}