Java ConcurrentMap Example

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Even though Map is implemented by many classes, many of them are not thread-safe or some of them are but not efficient. This is why ConcurrentMap was introduced in Java 1.5. It is thread-safe and efficient. Overridden default implementations: compute replaceAll forEach getOrDefault computerIfAbsent computerIfPresent ConcurrentMap consists of an array of nodes that are represented as table…

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