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Java中TreeSet并集计算方法
TreeSet 是一种有序的集合,用于存储不重复且按序排列的元素。它继承自 AbstractSet 类,并实现了 NavigableSet、Cloneable 和 Serializable 接口。其内部基于 TreeMap 实现,能够确保元素的有序性。TreeSet 支持两种排序方式:一种是元素自身的自然排序,要求元素实现 ...
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