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HashMap和Hashtable的区别比较 | Jordan Zhang随记 #14

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@JordanHank

https://jordanzhang.xyz/2018/11/04/HashMap%E5%92%8CHashtable%E7%9A%84%E5%8C%BA%E5%88%AB%E6%AF%94%E8%BE%83/

Java 集合框架中主要包含的容器类除了集合(Collection),另一种就是图(Map),主要用来存储键值对,其中最常用的就是HashMap,而HashMap和早期设计的Hashtable又有许多相似之处,所以经常将二者进行比较。 HashMap和Hashtable的继承关系HashMap 继承自AbstractMap类,实现了Map、Cloneable、java.io.Serializabl

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