What are Java locking mechanisms?

What are Java locking mechanisms?

Java locking mechanisms are tools that help manage access to shared resources in concurrent programming, ensuring thread safety.

Can you explain the difference between optimistic and pessimistic locking?

Optimistic locking assumes that multiple transactions can complete without affecting each other, while pessimistic locking prevents conflicts by locking resources.

When should I use synchronized blocks?

Use synchronized blocks when you need to ensure that only one thread can access a particular section of code at a time, preventing data inconsistency.

What are some common pitfalls when using locks in Java?

Common pitfalls include deadlocks, where two threads wait indefinitely for each other to release locks, and excessive locking, which can lead to performance issues.