Java LinkedList - use of basic function

import java.util.LinkedList;

 

public class MyBasicOperations {

 

    public static void main(String a[]){

         

        LinkedList<String> ll = new LinkedList<String>();

        ll.add("Orange");

        ll.add("Apple");

        ll.add("Grape");

        ll.add("Banana");

        System.out.println(ll);

        System.out.println("Size of the linked list: "+ll.size());

        System.out.println("Is LinkedList empty? "+ll.isEmpty());

        System.out.println("Does LinkedList contains 'Grape'? "+ll.contains("Grape"));

    }

}