LinkedHashSet Class extends extends HashSet class and Implements Set interface in collection interface hierarchy. LinkedHashSet implementation differs from HashSet as it maintains doubly-linked list running through all of its entries. It maintains element’s entries in set as per it’s insertion order. So it will allow you insertion order iteration over the set. So when you iterate over LinkedHashSet, … Read more
Set is one of the collection framework interface which extends root Collections interface. Set collection can not contain duplicate elements. Set interface has all methods which are inherited from Collection interface with special restriction of not allowing duplicate elements. If two Set interface contains same elements then both are equal. Set interface is implemented by … Read more
ArrayDeque is one of the collection framework member which implements Deque, Cloneable and Serializable interfaces. ArrayDeque provides Resizable-array implementation so it has no capacity restrictions and it will grow as per requirement. In the absence of external synchronization, they are not thread safe. So they do not allow multiple threads to access it concurrently. Also … Read more
Deque is one of the collection interface which extends Queue interface. Deque is linear collection which allow us to add and remove element from both ends of the queue. It is “double ended queue” that’s why it is called Deque and usually pronounced as “deck”. Deque has different methods to perform insert, delete and examine … Read more