如何在JAVA中每隔一段时间执行一段程序

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可以用线程来做，每隔几秒开一个线程 代码如下     public void runTask() {         final long timeInterval = 120000;// 两分钟运行一次         final ThreadService threadService = new ThreadService();         Runnable runnable = new Runnable() {             public void run() {                 while (true) {                     // ------- code for task to run //你要运行的程序                     // ------- ends here                     try {                         Thread.sleep(timeInterval);                     } catch (InterruptedException e) {                         e.printStackTrace();                     }                 }             }         };         Thread thread = new Thread(runnable);         thread.start();     }