When should I use a synchronized map in Java?

What is a synchronized map in Java?

A synchronized map is a thread-safe version of a map that allows safe access by multiple threads.

When should I use a synchronized map instead of a regular map?

You should use a synchronized map when you need to ensure that only one thread can access the map at a time to prevent data inconsistency.

Can you give me an example of when to use it?

Sure! If you're updating a shared map from multiple threads, using a synchronized map will prevent concurrent modification exceptions.

Are there any performance drawbacks to using synchronized maps?

Yes, synchronized maps can be slower than regular maps due to the overhead of synchronization, especially in high-concurrency scenarios.