peek() − Gets the element at the front of the queue without removing it. isfull() − Checks if the queue is full. isempty() − Checks if the queue is empty.

In addition to above operations, following operations are also supported getFront(): Gets the front item from queue. getRear(): Gets the last item from queue. isEmpty(): Checks whether Deque is empty or …

peek() [top()]: returns most recently-added element pop(): removes and returns most recently-added element Boolean isEmpty(): are there any elements? Boolean isFull(): is there any space left?

When front and rear indices move in the array: The following code is equivalent, but shorter (assuming 0 <= rear < queueSize): Do the same for advancing the front index. When is it full? …

Note that if a stack is implemented using a dynamic list structure, there may be no “stack full” test. The computer may simply give a “stack overflow” error when it runs out of memory. What happens when …

isfull() As we are using single dimension array to implement queue, we just check for the rear pointer to reach at MAXSIZE to determine that the queue is full. In case we maintain the queue in a circular …

implementing a queue as a singly linked circular list Problem: Write create, terminate, isFull, isEmpty, enqueue, and dequeue. Problem: Can you think of an application that requires a queue?