static void Main(string[] args)
{
while (true)
{
Console.WriteLine("Please input the First Number:");
double numberOne = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Please give the Second Number:");
double numberTwo = Convert.ToDouble(Console.ReadLine());
Console.WriteLine("Please choose the Operator:");
string oper = Console.ReadLine();
Calcu calc = GetCalcu(oper, numberOne, numberTwo);
Console.WriteLine("Result = {0}", calc.GetResult());
Console.ReadLine();
}
}
public static Calcu GetCalcu(string opera, double n1, double n2)
{
Calcu calcu = null;
switch (opera)
{
case "+":
calcu = new Add(n1, n2);
break;
case "-":
calcu = new Sub(n1, n2);
break;
case "*":
calcu = new Multi(n1, n2);
break;
case "/":
calcu = new Divi(n1, n2);
break;
}
return(calcu);
}
