static void Main() { GSM mobile = new GSM("Samsung", "Galaxy S5360", 330, "Evgeni Velikov"); mobile.AddCall(new Call(300)); mobile.AddCall(new Call(4000)); mobile.AddCall(new Call(120)); Console.WriteLine("Total Price: {0:C}", mobile.CalculateTotalPrice()); mobile.RemoveCall(new Call(4000)); Console.WriteLine("Total Price After Remove: {0:C}", mobile.CalculateTotalPrice()); mobile.RemoveAllCall(); Console.WriteLine("Remove Total Price: {0:C}", mobile.CalculateTotalPrice()); Console.WriteLine(); mobile.battery.HoursIdle = 340; mobile.battery.HoursTalk = 12; mobile.battery.Model = BatteryType.Li_Ion; mobile.display.Size = "320x480"; mobile.display.Colors = 65895; Console.WriteLine(mobile); }