static void Main(string[] args)
{
Shape[] myShapes = new Shape[3];
myShapes[0] = new Shape();
myShapes[1] = new Circle() {Radius = 10};
myShapes[2] = new Square();
foreach (Shape shape in myShapes)
{
Console.WriteLine(shape.Draw());
if (shape is Circle)
{
Console.WriteLine("\t The radius is {0}", ((Circle)shape).Radius);
}
}
Console.ReadLine();
}
