What is the difference between ExecutorService and ThreadPool?

What is the difference between ExecutorService and ThreadPool?

ExecutorService is an interface that provides a higher-level replacement for managing threads, while ThreadPool is a specific implementation that manages a pool of threads.

Can you explain how ThreadPool works?

ThreadPool manages a set of worker threads that execute tasks. It reuses threads for multiple tasks, reducing overhead.

When should I use ExecutorService over ThreadPool?

Use ExecutorService when you need more control over task execution, like scheduling or managing task lifecycles.

Are there any performance differences between them?

Yes, ExecutorService can optimize performance by managing thread lifecycles, while ThreadPool may lead to resource exhaustion if not managed properly.