What are the differences between ExecutorService and Thread in Java?

What are the differences between ExecutorService and Thread in Java?

ExecutorService is a higher-level replacement for managing threads. It provides a pool of threads and handles task execution, while Thread is a lower-level construct for creating and managing individual threads.

Can you explain the advantages of using ExecutorService?

Sure! ExecutorService simplifies thread management, allows for better resource utilization through thread pooling, and provides features like task scheduling and future results.

When should I use Thread instead of ExecutorService?

You might use Thread when you need fine-grained control over thread behavior or when you're working with a small number of threads that don't require pooling.

Are there any performance differences between the two?

Yes, ExecutorService can improve performance in scenarios with many short-lived tasks due to its thread pooling, while using Thread can lead to overhead if many threads are created and destroyed frequently.