How can I effectively use ScheduledExecutorService in Java?

How can I effectively use ScheduledExecutorService in Java?

ScheduledExecutorService is a powerful tool for scheduling tasks in Java. It allows you to run tasks after a delay or periodically. Would you like to see an example?

Yes, please provide an example of scheduling a task.

Sure! Here's a simple example:

ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);

Runnable task = () -> System.out.println("Task executed at: " + System.currentTimeMillis());

scheduler.scheduleAtFixedRate(task, 0, 5, TimeUnit.SECONDS);

This will execute the task every 5 seconds.

What if I want to schedule a task with a fixed delay instead?

You can use scheduleWithFixedDelay instead of scheduleAtFixedRate. Here's how:

scheduler.scheduleWithFixedDelay(task, 0, 5, TimeUnit.SECONDS);

This will wait for 5 seconds after the task finishes before executing it again.