public static void TestCars4(Func <string> action)
{
Console.WriteLine("\nTestCars4");
Console.WriteLine("----------");
Car car2 = new ConvertibleCar();
Car car3 = new Minivan();
car2.ShowDetails();
car3.ShowDetails();
action();
}
public static void TestCars1(Func <string> action)
{
Console.WriteLine("\nTestCars1");
Console.WriteLine("----------");
Car car1 = new Car();
car1.DescribeCar();
Console.WriteLine("----------");
ConvertibleCar car2 = new ConvertibleCar();
car2.DescribeCar();
Console.WriteLine("----------");
Minivan car3 = new Minivan();
car3.DescribeCar();
Console.WriteLine("----------");
action();
}