static void Main(string[] args)
{
GrObject[] Objects = new GrObject[]
{
new Circle(10), new Rectangle(10, 5), new Ellipse(10, 5), new Triangle(10, 10, 14.14),
new Cube(10, 5, 2), new Cylinder(10, 5), new Sphere(10), new Pyramid(5, 10, 2)
};
foreach (GrObject CurrentObject in Objects)
{
CurrentObject.Draw();
if (CurrentObject is Object2D)
{
Console.WriteLine("Object area: {0:F2}\n", ((Object2D)CurrentObject).CalculateArea());
}
if (CurrentObject is Object3D)
{
Console.WriteLine("Object surface area: {0:F2}", ((Object3D)CurrentObject).CalculateSurfaceArea());
Console.WriteLine("Object volume: {0:F2}\n", ((Object3D)CurrentObject).CalculateVolume());
}
}
}