Difference. Between concurrent hash map and synchronised hashmap

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ConcurrentHashMap allows multiple threads to access and modify the map concurrently, while SynchronizedHashMap ensures thread-safety by allowing only one thread to access the map at a time.

ConcurrentHashMap is more efficient in scenarios with high concurrency as it allows concurrent read and write operations.
SynchronizedHashMap is simpler to use and provides thread-safety, but can lead to performance degradation in highly concurrent environments.
ConcurrentHashMap achieves thread-safety by dividing the map into segments, allowing multiple threads to operate on different segments simultaneously.
SynchronizedHashMap uses a single lock to synchronize access to the entire map, causing contention among threads.
Example: In a web application with multiple users accessing and modifying a shared map, ConcurrentHashMap would be a better choice to ensure efficient concurrent operations.

Difference. Between concurrent hash map and synchronised hashmap

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