// if you call this method, it will in turn call other methods
        // for calculation, i.e. abstracting.
        // It calls PrintCircleDetails, which in turn will call
        // GetCircleCircumference and GetCircleArea.
        private void Print100DifferentCircleDetails()
        {
            var radius = 2;
            var counter = 0;
            // the while loop will iterate the code contained in its brackets ({})
            // until the statement "counter < 100" is false.
            // programming is 0 based that is why counter starts at 0 and the while loop
            // continues until counter is greater than 99 aka 100. So we still get 100 loops, but since
            // we start at 0 we end at 99.
            while (counter < 100)
            {
                PrintCircleDetails(radius);

                // increment the radius for unique results to print.
                // if the number needs to stay the same for all 100 iterations
                // then just remove the below line.
                radius++;

                // short hand for incrementing the counter variable by one.
                // in other words (counter = counter + 1).
                // Common shortcut that is provided in a lot of programming languages.
                counter++;
            }
        }

        private void PrintCircleDetails(int radius)
        {
            var circumference = GetCircleCircumference(radius);
            var area = GetCircleArea(radius);

            // Now print off the results :-)
            Print("Circle Radius = " + radius + " | Circle Circumference = " + circumference + " | Circle Area = " + area);
        }

        private double GetCircleCircumference(int radius)
        {
            var pi = 3.14; // shortened PI but accurate enough for our purposes. mmmmmmmm pi
            return 2 * pi * radius;
        }

        private double GetCircleArea(int radius)
        {
            var pi = 3.14; // shortened PI but accurate enough for our purposes. mmmmmmmm pi
            return pi * radius * radius;
        }