public static void Main()
        {
            Console.WriteLine(FileUtils.GetFileExtension("example.exe"));
            Console.WriteLine(FileUtils.GetFileExtension("example.pdf"));
            Console.WriteLine(FileUtils.GetFileExtension("example.new.pdf"));

            Console.WriteLine(FileUtils.GetFileNameWithoutExtension("example"));
            Console.WriteLine(FileUtils.GetFileNameWithoutExtension("example.pdf"));
            Console.WriteLine(FileUtils.GetFileNameWithoutExtension("example.new.pdf"));

            Console.WriteLine(
                "Distance in the 2D space = {0:f2}",
                MathUtils.CalculateDistance2D(1, -2, 3, 4));

            Console.WriteLine(
                "Distance in the 3D space = {0:f2}",
                MathUtils.CalculateDistance3D(5, 2, -1, 3, -6, 4));

            double width  = 3;
            double height = 4;
            double depth  = 5;

            Console.WriteLine("Volume = {0:f2}", MathUtils.CalculateVolume(width, height, depth));
            Console.WriteLine("Diagonal XYZ = {0:f2}", MathUtils.CalculateDiagonalXYZ(width, height, depth));
            Console.WriteLine("Diagonal XY = {0:f2}", MathUtils.CalculateDiagonalXY(width, height));
            Console.WriteLine("Diagonal XZ = {0:f2}", MathUtils.CalculateDiagonalXZ(width, height));
            Console.WriteLine("Diagonal YZ = {0:f2}", MathUtils.CalculateDiagonalYZ(height, height));
        }