What is thread safety in HashSet?

What is thread safety in HashSet?

Thread safety in HashSet refers to the ability of the HashSet to function correctly when accessed by multiple threads simultaneously.

Why is thread safety important when using HashSet?

It's important because without thread safety, concurrent modifications can lead to data corruption or unexpected behavior.

How can I make a HashSet thread-safe?

You can use synchronized collections, like Collections.synchronizedSet(new HashSet<>()) or use ConcurrentHashMap for better performance.

Are there any performance trade-offs with thread-safe HashSet?

Yes, using synchronized collections can introduce overhead, which may affect performance in highly concurrent scenarios.