//*******************************************
//uSer interfaernece to addcar
//*******************************************
public void AddCar()
{
Console.Write("Enter Car Brand:");
string brand = Console.ReadLine();
Console.Write("Enter Car Model:");
string model = Console.ReadLine();
Console.Write("Enter Car Registration Plate No:");
string plate = Console.ReadLine();
Console.Write("Enter Car Engine No:");
string Engine = Console.ReadLine();
Console.Write("Enter Car purchase Price:");
float PurchasePrice = float.Parse(Console.ReadLine());
Console.Write("Enter Car sale Price:");
float saleprice = float.Parse(Console.ReadLine());
Car c = new Car(brand, model, plate, Engine, PurchasePrice, saleprice);
d.AddCar(c);
}