What is the difference between synchronized and lock in Java?

Can you explain the difference between synchronized and lock in Java?

Sure! In Java, 'synchronized' is a keyword that allows you to control access to a method or block by multiple threads, ensuring that only one thread can execute it at a time.

What about the 'lock' mechanism?

The 'lock' mechanism, specifically from the java.util.concurrent.locks package, provides more flexibility than 'synchronized'. It allows for more complex thread synchronization, like try-lock and timed lock.

Are there any performance differences between them?

Yes, 'lock' can offer better performance in scenarios with high contention, as it allows for more granular control over thread access.

Which one should I use in my application?

It depends on your specific use case. If you need simple synchronization, 'synchronized' is easier to use. For more complex scenarios, consider using 'lock'.