private static void ChainOfResponsibilityDemo()
{
Approver larry = new DesignPatterns.ChainOfResponsibility.Director();
Approver sam = new VicePresident();
Approver tammy = new DesignPatterns.ChainOfResponsibility.President();
larry.SetSuccessor(sam);
sam.SetSuccessor(tammy);
// Generate and process purchase requests
Purchase p = new Purchase(2034, 350.00, "Assets");
larry.ProcessRequest(p);
p = new Purchase(2035, 32590.10, "Project X");
larry.ProcessRequest(p);
p = new Purchase(2036, 122100.00, "Project Y");
larry.ProcessRequest(p);
}