1、重写run()
public class OneTask extends TimerTask {
public OneTask() {
}
public void run() { }// run}
2、调用定时器
public Timer timer = new Timer();
timer.schedule(new OneTask(), 1000,(long) (t*1000));// 1秒(1秒等于1000毫秒)后启动任务 ,每次间隔t秒执行一次,