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Java入门记(五)：容器关系的梳理（下）——Map

注意：阅读本文及相关源码时，需要数据结构相关知识，包括：哈希表、链表、红黑树。　　Map是将键(key)映射到值(value)的对象。不同的映射不能包含相同的键；每个键最多只能映射到一个值。下图是常见Map的接口和实现。与Collection相比，继承关系简单不少。一、Map接口和...

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