static void Main(string[] args)
{
try {
ShapeManager sm = new ShapeManager();
sm.add(new Rectangle(5, 4));
sm.add(new Circle(3));
sm.add(new Elipse(3, 3));
sm.add(new Rectangle(5, 6));
sm.add(new Elipse(6, 8));
sm.add(new Circle(4));
sm.DisplayAll();
Shape s = sm[0];
Rectangle r = (Rectangle)s;
StringBuilder sb = new StringBuilder();
sm.Save(sb);
Console.WriteLine(sb.ToString());
Rectangle r1 = (Rectangle)sm[0];
Rectangle r2 = (Rectangle)sm[3];
Console.WriteLine(r2.CompareTo(r1));
Elipse e1 = (Elipse)sm[2];
Elipse e2 = (Elipse)sm[4];
Console.WriteLine(e2.CompareTo(e1));
Circle c1 = (Circle)sm[1];
Circle c2 = (Circle)sm[5];
Console.WriteLine(c1.CompareTo(e1));
c1.Display();
Console.WriteLine(sm.Count);
}
catch (InvalidCastException e)
{
Console.WriteLine(e.Message);
}
}
