static void Main(string[] args)
{
// console title
Console.Title = "Calculate Area of Triangle";
// clear screen
Console.Clear();
// method variables
double inputDiameter;
double inputHeight;
double returnArea;
// print header
Console.WriteLine("------------------------------------------------");
Console.WriteLine(" Calculate the Volume of a Cylinder");
Console.WriteLine(" 1. Enter Cylinder Diameter");
Console.WriteLine(" 2. Enter Cylinder Height");
Console.WriteLine("------------------------------------------------");
Console.WriteLine();
// user input - diameter
Console.Write(" Input Cylinder Diameter ..: ");
inputDiameter = Convert.ToDouble(Console.ReadLine());
// user input - height
Console.Write(" Input Cylinder Height ....: ");
inputHeight = Convert.ToDouble(Console.ReadLine());
// calculation by calling method
returnArea = CalcCylinderVolume(inputDiameter, inputHeight);
Console.WriteLine(" Volume of Cylinder .......: {0}", returnArea);
// print footer
Console.WriteLine();
}