01: public class MailSystemTest
02: {
03:    public static void main(String[] args)
04:    {
05:       MailSystem system = new MailSystem(MAILBOX_COUNT);
06: 
07:       Telephone p = new Telephone();
08:       Connection c = new Connection(system, p);
09:       p.run(c);
10:    }
11: 
12:    private static int MAILBOX_COUNT = 20;
13: }