How Concurrent Hashmap work internally, why you dont use other synchronized structure instead

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Accepted Answer

ConcurrentHashMap is a thread-safe implementation of Map interface in Java.

ConcurrentHashMap allows multiple threads to read and write concurrently without blocking each other.
It internally divides the map into segments and locks each segment separately to allow concurrent access.
Other synchronized structures like Hashtable and synchronizedMap lock the entire map, causing performance issues.
ConcurrentHashMap is preferred over synchronized structures in high-concurrency scenarios.
It provides better scalability and performance compared to other synchronized structures.

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