Circular queue size

Assuming you are using array of size N for queue implementation, then size of queue would be size = (N-front + rear) mod N .

1. How can you tell if a circular queue is full?
2. How do you determine the number of elements in a queue?
3. What is need for a circular queue?
4. Is queue size fixed?
5. How do you determine the size of a circular queue?
6. Is circular queue better than linear queue?
7. How do circular queues behave?
8. When the circular queue is implemented using the maximum size of array How do you calculate rear when element be inserted in the queue?
9. What is overflow condition for circular queue?
10. Why do we use circular queue instead of linear queue?
11. What is stack example?
12. Does a queue have a size?
13. What is Java Deque?
14. Is ConcurrentLinkedQueue thread safe?

How can you tell if a circular queue is full?

enQueue(value) This function is used to insert an element into the circular queue. In a circular queue, the new element is always inserted at Rear position. Check whether queue is Full – Check ((rear == SIZE-1 && front == 0) || (rear == front-1)). If it is full then display Queue is full.

How do you determine the number of elements in a queue?

Count Property is used to get the number of elements contained in the Queue. Properties: Enqueue adds an element to the end of the Queue. Dequeue removes the oldest element from the start of the Queue.

What is need for a circular queue?

What is the need for a circular queue? ... Priority queue is used to delete the elements based on their priority. Higher priority elements will be deleted first whereas lower priority elements will be deleted next. Queue data structure always follows FIFO principle.

Is queue size fixed?

ArrayBlockingQueue size() Method in Java

Bounded means it will have a fixed size, you can not store number the elements more than the capacity of the queue. The queue also follows FIFO (first-in-first-out) rule for storing and removing elements from the queue.

How do you determine the size of a circular queue?

Assuming you are using array of size N for queue implementation, then size of queue would be size = (N-front + rear) mod N .

Is circular queue better than linear queue?

A circular queue is better than a linear queue because the number of elements that can be stored is equal to the size of the array. This is not possible in linear because insertion cannot be done after the rear pointer reaches the end of the array.

How do circular queues behave?

Dequeue Operation

Case 1: FRONT = 0 && REAR == SIZE - 1. Case 2: FRONT = REAR + 1.

When the circular queue is implemented using the maximum size of array How do you calculate rear when element be inserted in the queue?

For storing the front and rear in circular queue, we use rear = (rear + 1) % size and front = (front + 1) % size.

What is overflow condition for circular queue?

Algorithm to insert an element in a circular queue

Step 1: IF (REAR+1)%MAX = FRONT. Write " OVERFLOW " Goto step 4. [End OF IF] Step 2: IF FRONT = -1 and REAR = -1.

Why do we use circular queue instead of linear queue?

The essential difference between the linear queue and the circular queue is that the linear queue consumes more space than the circular queue, while the circular queue was devised to limit the memory wastage of the linear queue.

What is stack example?

A stack is an abstract data type that holds an ordered, linear sequence of items. In contrast to a queue, a stack is a last in, first out (LIFO) structure. A real-life example is a stack of plates: you can only take a plate from the top of the stack, and you can only add a plate to the top of the stack.

Does a queue have a size?

queue::size() is used to check whether the size of the associated queue container. This function returns an unsigned int value, i.e the size of the queue container, or the number of elements present in a queue container. This function returns 0 if the queue is empty or having no elements in it.

What is Java Deque?

The Java Deque interface, java. util. Deque , represents a double ended queue, meaning a queue where you can add and remove elements to and from both ends of the queue. The name Deque is an abbreviation of Double Ended Queue. ... That means that you can use all the Java Queue methods when working with a Deque.

Is ConcurrentLinkedQueue thread safe?

3. ConcurrentLinkedQueue. A ConcurrentLinkedQueue is an unbounded, thread-safe, and non-blocking queue.