public static void Main(string[] args)
{
if (args.Length == 3)
{
int x = 0;
int y = 0;
string op = args[1];
try {
x = Int32.Parse(args [0]);
y = Int32.Parse (args [2]);
} catch (FormatException exc){
System.Console.WriteLine("Invalid input parameters type. Parameters should be integers");
}
var calculator = new Calculator<int>();
try {
var answ = calculator.PerformOperation(x, op, y);
System.Console.WriteLine(answ);
} catch (DivideByZeroException exc){
System.Console.Write (exc.Message);
} catch (UnknownOperationException exc) {
System.Console.Write (exc.Message);
}
} else {
System.Console.WriteLine ("Invalid nuber of input parameters. Input requires 3 parameters: int1, operation, int2");
}
}
