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csdn
15 年
一个特殊HASHMAP的比较问题
把问题简单化以下,请看如下代码:能根据KEY确认在一个容器中有多少元素属于VALUE(该问题已解决)。现在的问题整好相反,想要根据VALUE确定KEY是否在容器中。前提MAP的基本结构不能改。 import java.util.ArrayList; import java.util.LinkedHashMap; import java.util.LinkedHashSet ...
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