String time = new SimpleDateFormat("HH:mm:ss").format(new Date());
System.out.println("Start time : " + time);
ScheduledThreadPoolExecutor executor = new ScheduledThreadPoolExecutor(
5); // 创建5个执行线程
Runnable runnable = new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
String time = new SimpleDateFormat("HH:mm:ss")
.format(new Date());
System.out.println("Now Time : " + time);
}
};
executor.scheduleWithFixedDelay(runnable, 2, 3, TimeUnit.SECONDS);
原文：http://1129254.blog.51cto.com/1119254/1666037