Calculator as Console Application

Question

Hallo,

 

I'm going to develop a simple calculator in Console Application (in Visual Studio).

For this task I have use Methods for the operations.

Here I wrote a piece of code

but it doesnt semm to work good when I start the program to check for the math operations:

 

//First the methods

static double Addieren(double plusA, double plusB)

{

return plusA + plusB;

}

static double Multiplizieren(double multiA, double multiB)

{

return multiA * multiB;

}

//methods call in Main method

public static void Main()

{

Console.WriteLine("Bitte Starten Sie eine Taschen Rechenoperation ein: ");

double x, y;

x = Convert.ToDouble(Console.ReadLine());

y = Convert.ToDouble(Console.ReadLine());

char result;

result = Convert.ToChar(Console.ReadLine());

switch (result)

{

case '+':

Console.WriteLine("Bitte Geben Sie eine Rechenoperation ein", Addieren(x, y));

break;

case '*':

Console.WriteLine("Bitte Geben Sie eine Rechenoperation ein", Multiplizieren(x, y));

break;

default:

Console.WriteLine("FEHLER!! Probier es nochmal...");

break;

}

Console.WriteLine("Rechneroperation fertig!");

}

//In the output console I get: erro exception by X (exatly where x must be read with "console.read")

 

Can you test it too, please? What is the mistake?

 

PS: According to the task of the teacher, I have to use the methods!

 

Best regards

Giovanni