peek()

Java Deque peekFirst() Method The peekFirst() method of Java Deque Interface retrieves and not remove the first element of the given deque.…

Java ConcurrentLinkedQueue Class ConcurrentLinkedQueue is an unbounded thread-safe queue which arranges the element in FIFO. New elements are added at the tail…

Java Deque A deque is a linear collection that supports insertion and deletion of elements from both the ends. The name ‘deque’…