What are the differences between thread-safe data structures?

What are the differences between thread-safe data structures?

Thread-safe data structures are designed to handle concurrent access without leading to data corruption. Common types include synchronized collections, concurrent queues, and locks.

Can you explain how a ConcurrentHashMap works?

A ConcurrentHashMap allows concurrent access by dividing the map into segments, each of which can be locked independently, enabling multiple threads to read and write without blocking each other.

What are the performance implications of using synchronized collections?

Synchronized collections can lead to performance bottlenecks due to locking, especially under high contention. They are generally slower than concurrent collections but simpler to implement.

When should I use a ReadWriteLock?

Use a ReadWriteLock when you have a scenario with many reads and few writes. It allows multiple threads to read simultaneously while ensuring exclusive access for writes.