public static void main(String[] args) {final Timer timer = new Timer();TimerTask task = new TimerTask(){int count = 0;int wj = 10;@Overridepublic void run() {count++;if (count % 4 == 0) {wj++;System.out.println("放入玩具1个,现总数="+wj);}if (count % 6 ==0) {wj-=3;System.out.println("取出玩具3个,现总数="+wj);}if (wj < 3) {System.out.println("玩具现总数="+wj+",不足三个,程序结束");timer.cancel();}}};/*** task--这是被调度的任务。* delay--这是以毫秒为单位的延迟之前的任务执行。* period--这是在连续执行任务之间的毫秒的时间。*/timer.scheduleAtFixedRate(task, 0, 20000);}