How do I implement deques in Java?

How do I implement deques in Java?

You can implement deques in Java using the ArrayDeque or LinkedList classes. Would you like a code example?

Yes, please provide a code example using ArrayDeque.

Sure! Here's a simple example:

import java.util.ArrayDeque;

public class DequeExample {
    public static void main(String[] args) {
        ArrayDeque<String> deque = new ArrayDeque<>();
        deque.add("First");
        deque.addLast("Second");
        deque.addFirst("Zero");

        System.out.println(deque);
    }
}

This code demonstrates adding elements to the front and back of the deque.

What are the advantages of using ArrayDeque over LinkedList?

ArrayDeque is generally faster than LinkedList for most operations because it uses a dynamic array, which provides better cache performance.