java最简单的定时器实现

 import java.util.Timer; import java.util.TimerTask; public class T extends TimerTask { private String jobName = ""; public T(String jobName) { super(); this.jobName = jobName; } @Override public void run() { System.out.println("execute " + jobName); } public static void main(String[] args) { Timer timer = new Timer(); long delay1 = 1 * 1000; long period1 = 1000; // 从现在开始 1 秒钟之后，每隔 1 秒钟执行一次 job1 timer.schedule(new T("job1"), delay1, period1); long delay2 = 2 * 1000; long period2 = 2000; // 从现在开始 2 秒钟之后，每隔 2 秒钟执行一次 job2 timer.schedule(new T("job2"), delay2, period2); } }