> 原文:[https://www . geesforgeks . org/sorted set-isempty-method-in-Java-with-examples/](https://www.geeksforgeeks.org/sortedset-isempty-method-in-java-with ...

I am writing a way to implement SortedSet in java. SortedSet have the properties of Set interface plus feature of sorting in ascending order. It is by default provides elements in ascending order. It ...

Java 中 [SortedSet 接口的第一个()方法用于返回第一个，即当前在这个集合中最低的元素。