How can I cancel a task in ExecutorService?

How can I cancel a task in ExecutorService?

You can cancel a task in ExecutorService by calling the cancel() method on the Future object associated with the task.

What happens if the task is already running when I call cancel?

If the task is running, it will not be interrupted unless it checks for the interruption status. You should design your task to handle interruptions.

Can I check if a task was successfully cancelled?

Yes, you can check if a task was cancelled by calling the isCancelled() method on the Future object.

Are there any best practices for cancelling tasks?

It's best to ensure your tasks are designed to handle interruptions and to always check the cancellation status before proceeding with long-running operations.