The Executor framework provides the ThreadPoolExecutor class to execute Callable and Runnable tasks with a pool of threads, which helps you avoid all thread creation operations. When you send a task to the executor, it's executed as soon as possible, according to the configuration of the executor. There are use cases when you are not interested in executing a task as soon as possible. You may want to execute a task after a period of time or do it periodically. For these purposes, the Executor framework provides the ScheduledExecutorService interface along with its implementation, namely the ScheduledThreadPoolExecutor class.
In this recipe, you will learn how to create ScheduledThreadPoolExecutor and use it to schedule the execution of a task after a given period of time.
