Java HashSet : size() contains() remove() clear()

The remove() method shall be used to remove an unwanted object from a collection. We shall use the clear() method to completely empty a collection. The Contains() method enables us to determine whether a specific object is present in a collection or not. The size() method returns the number of elements in a collection. The … Read more…

Java HashSet

The Hashset class extends the AbstractSet class. The HashSet class implements the Set interface. This class deals with a collection, whose elements are stored in a hash table. The hashing mechanism is used to store the elements in a hash table. This mechanism uses the informational content of a key to determine a unique value. … Read more…