public class LinkedListQueueMain
{
   public static void main (String[ ] args)
   {
	PureQueue<String> queue = new LinkedListPureQueue<String>();

	// Figure 8.15.a.
	queue.enqueue ("Brian");
	queue.enqueue ("Jane");
	queue.enqueue ("Karen");
	queue.enqueue ("Bob");

	// Figure 8.15.b.
	queue.enqueue ("Kim");

	// Figure 8.15.c.
	queue.dequeue();

	PureQueue<String> newQueue = new LinkedListPureQueue<String> 
							((LinkedListPureQueue<String>)queue);
	while (!newQueue.isEmpty())
		System.out.println (newQueue.dequeue());
   } // method main
	
} // class LinkedListQueueMain