Stack using Two Queues in Java

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

public class TwoQueueStack<T> {
    private Queue<T> queue1;
    private Queue<T> queue2;
    
    public TwoQueueStack() {
        queue1 = new LinkedList<>();
        queue2 = new LinkedList<>();
    }
    
    public void push(T element) {
        // Add the element to queue1
        queue1.add(element);
    }
    
    public T pop() {
        if (queue1.isEmpty())
            throw new IllegalStateException("Stack is empty");
        
        // Move all elements except the last one from queue 1 to queue 2
        while (queue1.size() > 1) {
            queue2.add(queue1.remove());
        }
        
        // Retrieve the last element from queue 1, which is the top of the stack
        T poppedElement = queue1.remove();
        
        // Swap the references of queue 1 and queue 2
        Queue<T> temp = queue1;
        queue1 = queue2;
        queue2 = temp;
        
        return poppedElement;
    }
    
    public T peek() {
        if (queue1.isEmpty())
            throw new IllegalStateException("Stack is empty");
        
        T topElement = null;
        
        // Move all elements except the last one from queue 1 to queue 2
        while (!queue1.isEmpty()) {
            topElement = queue1.remove();
            queue2.add(topElement);
        }
        
        // Swap the references of queue 1 and queue 2
        Queue<T> temp = queue1;
        queue1 = queue2;
        queue2 = temp;
        
        return topElement;
    }
    
    public boolean isEmpty() {
        return queue1.isEmpty();
    }
    
    public int size() {
        return queue1.size();
    }
    
    public static void main(String[] args) {
        TwoQueueStack<Integer> stack = new TwoQueueStack<>();
        stack.push(1);
        stack.push(2);
        stack.push(3);
        
        System.out.println("Size of stack: " + stack.size());
        System.out.println("Top element of stack: " + stack.peek());
        
        System.out.println("Pop: " + stack.pop());
        System.out.println("Pop: " + stack.pop());
        System.out.println("Pop: " + stack.pop());
        
        System.out.println("Is stack empty? " + stack.isEmpty());
    }
}