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Java集合框架:List、Set、Map等接口与实现类详解
2、 集合框架定义了一些接口,本节将概述每个接口的内容。 3、 集合与列表的不同之处在于结构和功能。 4、 Set接口存储无序且不重复的数据,而List接口存储有序且可重复的元素。 5、 Set集合查询效率低,但插入和删除效率高,且不会导致元素位置变化(如 ...
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