private static void Proxy()
{
//create proxy
MathProxy proxy = new MathProxy();
//Do your calculations
Console.WriteLine("\n ----------------- Using Math Proxy to do my Calculations ----------------------");
Console.WriteLine("4 + 2 = " + proxy.Add(4, 2));
Console.WriteLine("4 - 2 = " + proxy.Subtract(4, 2));
Console.WriteLine("4 * 2 = " + proxy.Multiply(4, 2));
Console.WriteLine("4 / 2 = " + proxy.Divide(4, 2));
}