Introduction A HashSet or any other Set is a collection that doesn’t allow you to add duplicate elements. If you want objects of a class to be stored in a Set, you must override equals() and hashCode() methods. You must…
Introduction A HashSet or any other Set is a collection that doesn’t allow you to add duplicate elements. If you want objects of a class to be stored in a Set, you must override equals() and hashCode() methods. You must…