how to atomically update values in a ConcurrentHashMap in Java using Compute and ComputeIfAbsent methods?

Hi,  ConcurrentHashMap is a thread-safe implementation of the Java Map interface, designed to be used in multi-threaded environments. It allows multiple threads to access and modify the map simultaneously without causing data corruption or race conditions.

One of the key features of ConcurrentHashMap is that it provides atomic operations to update its elements. Atomic operations are operations that are performed as a single, indivisible unit of work, which means they are guaranteed to be executed completely or not at all. This is important in multi-threaded environments where multiple threads may try to modify the same element at the same time.

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