What are the performance implications of using synchronized collections in Java?

What are the performance implications of using synchronized collections in Java?

Synchronized collections in Java ensure thread safety but can lead to performance bottlenecks due to locking.

Can you explain how locking affects performance?

Locking can cause threads to wait, leading to increased latency and reduced throughput, especially under high contention.

Are there alternatives to synchronized collections?

Yes, alternatives include using concurrent collections like ConcurrentHashMap or using explicit locks for finer control.

When should I use synchronized collections?

Use synchronized collections when you need simple thread safety and your application has low contention for resources.