I need the add method and Boolean of the orderedList extends DoublyLinkedList implements IOrderedList. For JUint test. The last one is my add method of the double Linked List. Double list (past the test). But I am struggling with The ordered list.

cos210/ds/Orderedlist java-Eclipse IDE Project Run Window Help 0 DoublyLinkedListjava Orderedlistjava OrderedList jova 1 package edu.mccc.cos210.ds; 3 public class OrderedList extends IDoublyLinkedListT>, 5public boolean contains(T data); 7 javalang. Iterable 4 public void add(T data) aProblems ) Console o consoles to display at this time. errors, 2 wamings 4 mccc/cos210/ds/DoublyLinkedList.java- Eclipse IDE earch Project Run Window Help DoublyLinkedList ja a S, T OrderedList.java-D lOrderedlist.java 1 package edu.mccc.cos210.ds; 2 public class DoublyLinkedList implements IDoublyLinkedListo ( protected DNode head null; protected DNode tail null; private int size e; 6e @0verride e 7public void addFirst (T data) f @Suppresskarnings ("unused") DNode node new DNode(data); if (isEmpty)) f 10 tail node; 12 13 14 15 16 17 18 19 20 COverride else f head.prevNode = node; node.nextNode head; head node; size++; 21 public T getFirst() { if (isEmpty)) ( throw new java.util.NoSuchElementException ()5 24 25 26 27override 28 public T remove First() { return head.getData); Console X No consoles to display at this time