Shulou(Shulou.com)06/01 Report--

This article introduces to you what is the difference between ConcurrentHashMap and Hashtable, the content is very detailed, interested friends can refer to, hope to be helpful to you.

1.ConcurrentHashMap divides the whole array (each segment has a lock). Each lock only locks a part of the data in the container, and multithreading accesses the data of different data segments in the container, so there will be no lock competition and the concurrent access rate will be improved.

two。 While Hashtable locks the whole array together, the access efficiency is very low.

About what the difference between ConcurrentHashMap and Hashtable is shared here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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