Iterator help

[alpdog14]

I am trying to apply a hasNext() to an iterator class but having trouble implementing it, here is my code:

private class ListIterator<T> implements Iterator<T>{
        
        private LinkedList<T> theList;
        private Cell<T> current;
        
        public ListIterator(LinkedList<T> LL) {
            theList = LL;
            current = theList.head;
        }
        
        
        public boolean hasNext() {
            
            Cell<T> p = head;
                while (n > 0){
                if (current==null) return;
                    p = p.next();
                    n--;
                }
                p.current.next;
                count++;
            }
        
        
      
        public T next() {
            return null; 
        }

The hasNext code I currently in there is not correct.

Can anyone let me know how to approach both of these methods. Any help would be most appreciated.

[Fubarable]

So your iterator holds its own list? I'm no expert in this, but it smells a little funny to me. Why are you doing it this way?

[alpdog14]

because i was told to, here is the working code:

private class ListIterator<T> implements Iterator<T>{
        
        private LinkedList<T> theList;
        private Cell<T> current;
        
        public ListIterator(LinkedList<T> LL) {
            theList = LL;
            current = theList.head;
        }
        
       
        public boolean hasNext() {
            return current !=null;
      
           
        }
        
        
       
        public T next() {
            T temp = current.data;
            current = current.next();
            return temp;
        }
        
        public void remove() {} 
    }