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> 原文:[https://www . geesforgeks . org/enum set 和-treeset-in-java 的区别/](https://www.geeksforgeeks.org/difference-between-enumset-and-treeset-in-java ...
the 'for-each' loop to print out the 'HashSet'; // LINKED HASH SET: // Java 'LinkedHashSet' class also does not have 'Indexes' and it stores the unique objects, however, it keeps them in the ...