For use with CMSC-341, Spring 99,  Project 2

Here is the definition of the ArrayListIterator class. 

Copy it to your ArrayListIterator.H file. 

Remember:
 -- guard the file
 -- complete the documentation
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/* Iterators over ArrayLists.  Forward and reverse
  iterators can be chosen by argument to the constructor.
   Author: Thomas Anastasio
   Version: 6 February 1999
*/
template <class T>
class ArrayListIterator : public ListIterator<T>
{
public:
  ArrayListIterator(ArrayList<T>* lst, int direction);

  // Accessor for the next element
  // Return: the next available element and advance the iteration
  // Precondition:  It is an error to call this method when there
  // is no next element (i.e. when HasNext() is false)
  // Enforced by an assertion.
  T  Next();
};