/**
 <p>Main class for the system: Creates all other classes
 and starts things rolling.</p>
 <p>Assumes the existence of classes OrderQueue and OrderPrinter
 which contain orders and which print orders, respectively.</p>
 */
public class APDTS {
    public static void main(String[] args) {
        OrderQueue queue = new OrderQueue();
        OrderUI orderUI = new OrderUI(queue, new OrderPrinter());
        TrackingDisplayUI trackingUI = new TrackingDisplayUI();
        /* Suggested interface: 
        queue.addObserver(trackingUI);
        */
        orderUI.show();
    }
}