import java.util.LinkedList;

public class Main {
  public static void main(String[] args) {
    LinkedList<String> cars = new LinkedList<String>();
    cars.add("Volvo");
    cars.add("BMW");
    cars.add("Ford");
    cars.add("Mazda");
    System.out.println(cars);
    
    // Use get() to get the value of an item
     System.out.println(cars.get(0));

     // Use set() to set the value of an item
     cars.set(0, "Opel");
     System.out.println(cars);

     // Use remove() to remove an item
     cars.remove(0);
     System.out.println(cars);

     // Use addFirst() to add the item to the start
     cars.addFirst("Mazda");
     System.out.println(cars);

     // Use addLast() to add the item to the end
     cars.addLast("Mazda");
     System.out.println(cars);

    // Use removeFirst() remove the first item
    cars.removeFirst();
    System.out.println(cars);

    // Use removeLast() remove the last item
    cars.removeLast();
    System.out.println(cars);

    // Use getFirst() to display the first item in the list
    System.out.println(cars.getFirst());

    // Use getLast() to display the last item in the list
    System.out.println(cars.getLast());
    
    // Use clear() to clear the list
    cars.clear();
    System.out.println(cars);



  }
}