What is ConcurrentHashMap and Hashtable? In java, why is ConcurrentHashMap considered faster than Hashtable?

What is ConcurrentHashMap and Hashtable? In java, why is ConcurrentHashMap considered faster than Hashtable?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: interviewbit, multithreading, topic-specific, concurrency

参考答案摘要

ConcurrentHashMap : It was introduced in Java 1.5 to store data using multiple buckets. As the name suggests, it allows concurrent read and writes operations to the map. It only locks a certain portio...

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