static void Main()
{
Shape[] shapes = new Shape[3]
{ new Rectangle(4, 3), new Triangle(2, 2), new Circle(2) };
foreach (Shape shape in shapes)
{
Console.WriteLine(shape);
Console.WriteLine();
}
}
public override Shape scale(Shape myCircle)
{
Radius = Radius + 1;
return myCircle;
}
public abstract Shape scale(Shape x);
public override Shape scale(Shape myRectangle)
{
Height = Height + 1;
Width = Width + 1;
return myRectangle;
}
public void CallArea(Shape sh)
{
int a;
a = sh.area();
Console.WriteLine("Area: {0}", a);
}
//public static bool Contains(this Shape s, Shape t)
//{
// if (s is Rectangle && t is Rectangle) return Contains((Rectangle)s, (Rectangle)t);
// if (s is Rectangle && t is Circle) return Contains((Rectangle)s, (Circle)t);
// if (s is Circle && t is Rectangle) return Contains((Circle)s, (Rectangle)t);
// if (s is Circle && t is Circle) return Contains((Circle)s, (Circle)t);
// throw new ArgumentException();
//}
// ↑before
// ↓after
public static bool Contains(this Shape s, Shape t)
{
return Contains((dynamic)s, (dynamic)t);
}
