Is LinkedHashMap thread-safe in Java?

Is LinkedHashMap thread-safe in Java?

No, LinkedHashMap is not thread-safe. You need to synchronize it externally.

What does it mean for a data structure to be thread-safe?

Thread safety means that a data structure can be accessed by multiple threads without causing data corruption.

How can I make LinkedHashMap thread-safe?

You can use Collections.synchronizedMap() to wrap your LinkedHashMap or use ConcurrentHashMap for better performance.

Are there any performance implications of using synchronized collections?

Yes, synchronized collections can introduce overhead due to locking, which may affect performance in high-concurrency scenarios.

What are some alternatives to LinkedHashMap for thread-safe operations?

You might consider using ConcurrentHashMap or CopyOnWriteArrayList, depending on your use case.