Need help filling in the areas, unsure of how to do the code, JAVA. I've highlited what needs completing. 

 /** This question practices the use of a list iterator. You have to write a static toString(list, index) method that makes a string representation of a list and its iterator, where you are given the index of the next element that the iterator would return on a call to next(). The expected output is | A| AB| ABC| |ABC |BC B C BC| */ import java.util.LinkedList ; import java.util.ListIterator ; import java.util.Scanner ; public class LinkedListTester4 { public static void main(String[] args) { LinkedList list = new LinkedList() ; ListIterator iterator = list.listIterator() ; System.out.println(toString(list, iterator.nextIndex())) ; iterator.add("A") ; System.out.println(toString(list, iterator.nextIndex())) ; iterator.add("B") ; System.out.println(toString(list, iterator.nextIndex())) ; iterator.add("C") ; System.out.println(toString(list, iterator.nextIndex())) ; iterator = list.listIterator() ; System.out.println(toString(list, iterator.nextIndex())) ; if (iterator.next().equals("A")) iterator.remove() ; System.out.println(toString(list, iterator.nextIndex())) ; while (iterator.hasNext()) System.out.println(iterator.next()) ; System.out.println(toString(list, iterator.nextIndex())) ; } /** A static method to return a string representation of the list and the iterator. Note that the listIterator method nextIndex gives the index of the next element that would be returned by a call to next, or list size if the list iterator is at the end of the list. The four possible pictures for a list [A,B,C] are: |ABC here index would be 0 A|BC here index would be 1 AB|C here index would be 2 ABC| here index would be 3 (i.e., the size of the list) @param list the linked list of type LinkedList @param index of next element that the iterator would return by next @return a string representation like A|BC */  //-----------Start below here. To do: approximate lines of code = 11 // 1. signature of method ; //2. initialize result to empty string ; //3. if index is 0 ; //then put "|" on result ; //4. initialize count ; //5. for each element in the list ; //6. append element to result ; //7. increment count ; //8. if count is index ; //then append "|" ; //9. return result. //-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions. }