Exercise 3: Add the following method to LinkedList.java.Method public void addAsSecondNode(String d)that will add a new Node to the linked list with String d as the second node in the list. If the list is empty, it will add it as the first node.

Test your method by including appropriate test statements to your demo program. Exercise 3: Add the following method to LinkedList.java. Method public void addAssecondNode (String d) that will add a new Node to the linked list with String d as the second node in the list. If the list is empty, it will add it as the first node. Test your method by including appropriate test statements to your demo program