What is a circular queue and how is it implemented in different programming languages?

Can you explain what a circular queue is?

A circular queue is a linear data structure that follows the FIFO principle but connects the end back to the front, forming a circle.

How is a circular queue implemented in Python?

In Python, you can implement a circular queue using a list and two pointers to track the front and rear of the queue.

What about in Java? How does it differ?

In Java, a circular queue can be implemented using an array and two indices, similar to Python, but with more emphasis on handling overflow.

Can you show me a code example for C++?

Sure! Here's a simple C++ implementation:

class CircularQueue {
private:
    int front, rear, size;
    int* queue;
public:
    CircularQueue(int s) : front(0), rear(0), size(s) {
        queue = new int[s];
    }
    // Methods for enqueue, dequeue, etc.
};