ExecutorService vs Thread Pool: What's the Difference?

What is the difference between ExecutorService and a Thread Pool?

ExecutorService is an interface in Java that provides a higher-level replacement for managing threads, while a Thread Pool is a collection of pre-initialized threads that can be reused for executing tasks.

Can you explain how to create a Thread Pool using ExecutorService?

Sure! You can create a Thread Pool using the Executors class. For example, use Executors.newFixedThreadPool(int nThreads) to create a pool with a fixed number of threads.

What are the advantages of using ExecutorService over creating threads manually?

Using ExecutorService simplifies thread management, improves resource utilization, and provides better error handling and task scheduling.

Are there any performance considerations when using ExecutorService?

Yes, performance can be affected by the size of the thread pool, the nature of the tasks, and how well the tasks are balanced across threads.