Jan 3, 2012 · 174 Take a look at LinkedHashSet class for insertion-order, implementing SequencedSet & Set interfaces. From Java doc: Hash table and linked list implementation of …

May 25, 2012 · Does a Java Set retain order? A method is returning a Set to me and supposedly the data is ordered but iterating over the Set, the data is unordered. Is there a better way to …

Jun 18, 2017 · As per documentation public ArrayList (Collection c) Constructs a list containing the elements of the specified collection, in the order they are returned by the collection's …

Jul 17, 2025 · The issue here is that the order in which you added the elements to the set {"12", "15", "5"} are already coincidentally in sorted order (as defined by the String class), so sorting …

Feb 19, 2012 · Hash table and linked list implementation of the Set interface, with predictable iteration order. This implementation differs from HashSet in that it maintains a doubly-linked …

For lists, we use the Collections.sort(List) method. What if we want to sort a HashSet?

Jul 2, 2018 · A Set that further provides a total ordering on its elements. The elements are ordered using their natural ordering, or by a Comparator typically provided at sorted set creation time. …

Sep 3, 2018 · I've noted while testing that the new Set.of method of Java 9 doesn't return an ordered implementation of a Set. How can I use such utilities and still get an ordered …

Sep 7, 2015 · TreeSet is sorted by element order; LinkedHashSet retains insertion order. Hopefully one of those is what you were after. You've specified that you want to be able to …

Mar 16, 2016 · An ordered collection is a collection that keep track of a consecutive index which every element is inserted in. A sorted collection is an ordered collection when the order …