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ConcurrentHashMap和Hashtable到底有什么不同？ | Leo Yang's Blog #17

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leo-yang0201 opened this issue Mar 10, 2020 · 0 comments
Open

ConcurrentHashMap和Hashtable到底有什么不同？ | Leo Yang's Blog #17

leo-yang0201 opened this issue Mar 10, 2020 · 0 comments
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https://leo-yang0201.github.io/leo-yang0201.github.io/2020/03/10/ConcurrentHashMap%E5%92%8CHashtable%E7%9A%84%E5%8C%BA%E5%88%AB/

面试只要是问到多线程相关的知识，这个问题是很常见的，我查了几篇资料然后做了一下总结： 首先HashMap它不是线程安全的，在多线程情况下HashMap可能出现以下线程安全问题： 多线程的put可能导致元素的丢失试验代码： 注：仅作为可能会产生这个问题的样例代码，直接运行不一定会产生问题 123456789101112131415161718192021222324252627282930publi
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