The key point of this example is the Main class and the management of ScheduledThreadPoolExecutor. As with the ThreadPoolExecutor class, to create a scheduled executor, Java recommends that you utilize the Executors class. In this case, you used the newScheduledThreadPool() method. You passed the number 1 as a parameter to this method. This parameter refers to the number of threads you want to have in the pool.
To execute a task in this scheduled executor after a period of time, you have to use the schedule() method. This method receives the following three parameters:
- The task you want to execute
- The period of time you want the task to wait before its execution
- The unit of the period of time, specified as a constant of the ...