How can I implement queues in different programming languages?

How can I implement queues in different programming languages?

You can implement queues using arrays or linked lists in languages like Python, Java, or C++. Would you like examples?

Yes, please provide an example in Python.

In Python, you can use the collections.deque for an efficient queue implementation. Here's a simple example:

from collections import deque

queue = deque()
queue.append('first')  # Enqueue
queue.append('second')
print(queue.popleft())  # Dequeue: 'first'

What about in Java?

In Java, you can use the LinkedList class to implement a queue. Here's a quick example:

import java.util.LinkedList;
import java.util.Queue;

Queue<String> queue = new LinkedList<>();
queue.add("first");  // Enqueue
queue.add("second");
System.out.println(queue.poll());  // Dequeue: 'first'