WebAug 1, 2010 · If you want to convert a HashSet to a TreeSet, then do so: Set hashSet = getItSomehow (); Set treeSet = new TreeSet (new YourComparator ()); treeSet.addAll (hashSet); // Now it's sorted based on the logic as implemented in YourComparator. WebNov 17, 2024 · Elements in HashSet does maintain order while TreeSet maintains objects in sorted order defined by either comparable or comparator method in Java. TreeSet elements are sorted in ascending order by default. So now the problem that occurs is to sort given HashSet in descending order.
Java – How to sort LinkedHashSet contents - benchresources.net
WebJul 19, 2024 · Java Programming - Beginner to Advanced; C Programming - Beginner to Advanced; Web Development. Full Stack Development with React & Node JS(Live) Java Backend Development(Live) Android App Development with Kotlin(Live) Python Backend Development with Django(Live) Machine Learning and Data Science. WebIn method 1, we created a list and get the HashSet elements copied to it, then we have used the Collections.sort () method that sorts the elements of a list. In method 2, we created a TreeSet and got the HashSet elements in TreeSet by providing the HashSet reference while creating TreeSet. how many pepper seeds per ounce
How to sort HashSet in Java - TutorialsPoint
WebMar 18, 2024 · We can sort a HashSet in Java. HashSet elements are not sorted originally as it does not maintain the order of elements. We can follow two approaches to sort a HashSet in Java. Using Collections.sort () Method In this approach, we convert the HashSet into a list. Then, we use the Collections.sort () method to sort the list. WebHashSet extends Abstract Set class and implements Set, Cloneable, and Serializable interfaces where E is the type of elements maintained by this set. The directly known subclass of HashSet is LinkedHashSet.. Now … WebThe method does not return any value. It throws the following exceptions: ClassCastException: If the list contains elements that are not mutually comparable. UnsupportedOperationException: If the specified list's list-iterator does not support the set operation. The difference between sorting HashMap by Keys and Values is that it can … how car oil filters are made