ScheduledExecutorService vs Timer: Which Should I Use?

What's the difference between ScheduledExecutorService and Timer in Java?

ScheduledExecutorService is part of the java.util.concurrent package and provides a more flexible and powerful way to schedule tasks compared to Timer.

Can you explain why ScheduledExecutorService is considered more robust?

Sure! ScheduledExecutorService can handle multiple tasks concurrently and provides better error handling, while Timer can only handle one task at a time.

Are there any performance differences between the two?

Yes, ScheduledExecutorService generally performs better under high load due to its thread pool management, while Timer can suffer from delays.

When should I use Timer instead of ScheduledExecutorService?

You might use Timer for simple, single-threaded scheduling tasks where the overhead of a thread pool is unnecessary.