public WindowsPhoneBuilder()
 {
     Phone         = new MobilePhone("Windows Phone");
     Phone.Screen  = ScreenType.ScreenType_TOUCH_RESISTIVE;
     Phone.Battery = Battery.MAH_1000;
     Phone.OS      = OperatingSystem.WINDOWS_PHONE;
     Phone.Stylus  = Stylus.YES;
 }
 public AndroidPhoneBuilder()
 {
     Phone = new MobilePhone("Android Phone");
 }