ProgramGood.Net

for (; contours != null; contours = contours.HNext)
{
 Contour<Point> approxContour = contours.ApproxPoly(contours.Perimeter * 0.02, contours.Storage);
 img.Draw(approxContour, new Bgr(1, 1, 251), 2);
}

class Program
{
    static void Main(string[] args)
    {
        for (int i = 1; i <= 5; i++) // normal usage
        {
            Console.WriteLine("i count is {0}", i);
        }

        int k = 1;
        for (; k<=5; k++) // missing first bit
        {
            Console.WriteLine("k count is {0}", k);
        }

        int m = 1;
        for (; m <= 5;) // missing last bit too
        {
            Console.WriteLine("m count is {0}", m);
            m++;
        }

        for (; ; ) // infinite loop, never breaks out
        {
            
        }



        Contour contA = new Contour { x = 10, y = 20 };
        Contour contB = new Contour { x = 50, y = 60 };
        Contour contC = new Contour { x = 90, y = 100 };

        List<Contour> listOfContours = new List<Contour>();
        listOfContours.Add(contA); // better way to add to a collection?
        listOfContours.Add(contB);
        listOfContours.Add(contC);

        foreach (Contour contour in listOfContours)
        {
            Console.WriteLine("x is {0}", contour.x.ToString());
            Console.WriteLine("y is {0}", contour.y.ToString());
            Console.WriteLine();
        }

        int j = 0;
        while (j < 5)
        {
            Console.WriteLine("While loop counter is {0}", j.ToString());
            j++;
        }
    }
}

class Contour
{
    public int x;
    public int y;
    //public int x { get; set; }
    //public int y { get; set; }
}