private static void FunWithRectangles () {
var r = new Rectangle {
TopLeft = new Point {X = 1, Y = 2, Z = 3},
BotRight = new Point {X = 4, Y = 5, Z = 6},
Height = 15,
Width = 17
};
Console.WriteLine ("\nRectangle r:\n{0}\n", r.ToString ());
var rClone = (Rectangle) r.Clone ();
Console.WriteLine ("\nRectangle rClone:\n{0}\n", rClone.ToString ());
}
private static void ExplicitCasts() {
var r = new Rectangle(5, 7);
Console.WriteLine(r.ToString());
r.Draw();
Console.WriteLine();
var s = (Square) r;
Console.WriteLine(s.ToString());
s.Draw();
Console.WriteLine();
s = (Square) 3;
Console.WriteLine(s.ToString());
s.Draw();
Console.WriteLine();
}