public class ListerDemo {

	public static void main(String[] args) {
		Node<String> head;
		Node<String> middle;
		Node<String> tail;
		Lister<String> print;
		
		tail = new Node<String>("Harpo", null);
		middle = new Node<String>("Chico", tail);
		head = new Node<String>("Groucho", middle);
		
		print = new Lister<String>(head);
		
		while (print.hasNext())
			System.out.println(print.next());

	}

}