/**
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())) ;

System.out.println("Expected:|A|AB|ABC||ABC|BCBCBC|");


}
/**
A static method to return a string representation of the list and the iterator.  Note that the list iterator 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
 */

public static String toString(LinkedList list, int index)
{
//-----------Start below here. To do: approximate lines of code = 10
// 1. initialize result to the empty string ;

//2. if index is 0 ;

//then put "|" on result ;

//3. initialize count ;

//4. for each element in the list ;

//5. append an element to result ;

//6. increment count ;

//7. if count is index ;

//then append "|" ;


//8. return result.

//-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions.
}

}