static void Main(string[] args)
{
{
Console.WriteLine("Overriding Method Example");
var shapes = new List <Shape>();
shapes.Add(new Circle());
shapes.Add(new Rectangle());
shapes.Add(new Triangle());
var canvas = new Canvas();
canvas.DrawShapes(shapes);
Console.WriteLine("=================");
Console.WriteLine("Abstract Class Example");
var circle = new Circles();
circle.Draw();
var rectangle = new Rectangles();
rectangle.Draw();
}
}