Consider the following code (used in a singly linked list): private void Mystery(Object value) //line 1 { } Node newOne = new Node (value); //line 2 if (head == null) //line 3 { head = newOne; //line 4 newOne.setNext (null); //line 5 } else { } Node current = head; //line 6 while (current.getNext() != null) //line 7 current = current.getNext(); //line 8 current.setNext (newOne); //line 9 Describe the function of this method? Refer to the line numbers in your discussion.