Is there any difference between ConcurrentHashMap and Collections.synchronizedMap?

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What are the differences between Maps returned by Collections.synchronizedMap(Map) and ConcurrentHashMaps? Which one fits which situation?

Dec 26, 2018 in Java by Daisy
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1 answer to this question.

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ConcurrentHashMap: It allows concurrent modification of the Map from several threads without the need to block them.

Collections.synchronizedMap(map): It creates a blocking Map which will degrade performance, albeit ensure consistency (if used properly).
answered Dec 26, 2018 by Sushmita
• 6,880 points

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