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HashMap HashMap也是我们使用非常多的Collection,它是基于哈希表的 Map 接口的实现,以key-value的形式存在。 在HashMap中,key-value总是会当做一个整体来处理,系统会根据hash算法来来计算key-value的存储位置,我们总是可以通过key快速地存、取value。
While the Hashtable was part of the initial Java release over two decades ago, the HashMap is the correct key-value store to use today. One key HashMap vs. Hashtable difference is the fact that the ...
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