1 import java.util.Date;
 2 import java.util.Iterator;
 3 import java.util.List;
 4 
 5 
 6 
 7 public class Order
 8 {
 9     private Customer customer;
10     private List lineItems;
11     private String orderNumber;
12 
13     public Order(Customer customer, List lineItems)
14     {
15         this.customer = customer;
16         this.lineItems = lineItems;
17 
18         orderNumber = customer.getId() + "-" + new Date().getTime();
19     }
20 
21     public Customer getCustomer()
22     {
23         return customer;
24     }
25 
26     public List getLineItems()
27     {
28         return lineItems;
29     }
30 
31     public String getOrderNumber()
32     {
33         return orderNumber;
34     }
35 
36     public float total()
37     {
38         float total = 0;
39 
40         for (Iterator iterator = lineItems.iterator(); iterator.hasNext();)
41         {
42             Item item = (Item)iterator.next();
43             total += item.getCost();
44         }
45 
46         return total;
47     }
48 }
49