What are the best practices for locking in Java?

What are the best practices for locking in Java?

In Java, best practices for locking include using synchronized blocks, avoiding unnecessary locks, and using ReentrantLock for more flexibility.

Can you explain why avoiding unnecessary locks is important?

Avoiding unnecessary locks is crucial because it reduces contention, improves performance, and minimizes the risk of deadlocks.

What is a ReentrantLock and how is it different from synchronized?

ReentrantLock is a more advanced locking mechanism that allows for features like tryLock and timed lock, providing greater control than synchronized.

Are there any specific scenarios where I should prefer ReentrantLock?

Yes, prefer ReentrantLock in scenarios requiring fairness, interruptible locks, or when you need to try acquiring a lock without blocking.