static void TestCar4()
{
Console.WriteLine("\nTestCars4");
Console.WriteLine("----------");
Car car2 = new ConvertibleCar();
Car car3 = new Minivan();
car2.ShowDetails();
car3.ShowDetails();
}
static void TestCar1()
{
Console.WriteLine("\nTestCars1");
Console.WriteLine("----------");
Car car1 = new Car();
car1.DescribeCar();
Console.WriteLine("----------");
// Notice the output from this test case. The new modifier is
// used in the definition of ShowDetails in the ConvertibleCar
// class.
ConvertibleCar car2 = new ConvertibleCar();
car2.DescribeCar();
Console.WriteLine("----------");
Minivan car3 = new Minivan();
car3.DescribeCar();
Console.WriteLine("----------");
}
