import java.util.*;
import java.util.concurrent.*;
import java.util.stream.*;

class Main {
    public static void main(String[] args) {
        Queue<Integer> queue = IntStream.rangeClosed(1, 5)
            .boxed()
            .collect(Collectors.toCollection(LinkedList::new));

        // add() and offer() add to the end of the queue
        queue.add(10);
        queue.offer(11);
        System.out.println("The queue currently has " + queue);
        
        // poll()/remove() removes from the beginning of the queue
        System.out.println(queue.remove());
        System.out.println(queue.poll());
        
        System.out.println("The queue finally contains " + queue);
    }
}