Cant figure out simple console app

[nsmanners]

I have created a very simple console app that
1. Displays menu with list of options to choose
2. Should be able to add/substract/multiply/divide based on the option choosen
3. once option is chosen, should prompt the user to enter the inputs and provide the output.

Now i need to change to code in order to follow the below guidlines:
- Use one class per method.
- Common base class for all the operations.

Can someone please help me out with this?

The code is below:

using System;

namespace ConsoleApp
{


public class Choices
{

public static void Main()
{
int num1;
int num2;

string myChoice;


Choices chs = new Choices();

do
{
myChoice = chs.getChoice();
Console.Write("press Enter key to continue...");
Console.ReadLine();
Console.WriteLine();

// Make a decision based on the user's choice
switch (myChoice)
{
case "1":
Console.Write("Please enter the first integer: ");
num1 = Convert.ToInt32(Console.ReadLine());

Console.Write("Please enter the second integer: ");
num2 = Convert.ToInt32(Console.ReadLine());

Console.Write(num1);
Console.Write(" + ");
Console.Write(num2);
Console.Write(" = ");
Console.Write(num1 + num2);

break;

case "2":
Console.Write("Please enter the first integer: ");
num1 = Convert.ToInt32(Console.ReadLine());

Console.Write("Please enter the second integer: ");
num2 = Convert.ToInt32(Console.ReadLine());

Console.Write(num1);
Console.Write(" - ");
Console.Write(num2);
Console.Write(" = ");
Console.Write(num1 - num2);
break;

case "3":
Console.Write("Please enter the first integer: ");
num1 = Convert.ToInt32(Console.ReadLine());

Console.Write("Please enter the second integer: ");
num2 = Convert.ToInt32(Console.ReadLine());

Console.Write(num1);
Console.Write(" / ");
Console.Write(num2);
Console.Write(" = ");
Console.Write(num1 / num2);
break;

case "4":
Console.Write("Please enter the first integer: ");
num1 = Convert.ToInt32(Console.ReadLine());

Console.Write("Please enter the second integer: ");
num2 = Convert.ToInt32(Console.ReadLine());
Console.Write(num1);
Console.Write(" * ");
Console.Write(num2);
Console.Write(" = ");
Console.Write(num1 * num2);
break;

case "5":
Console.WriteLine("Bye.");
break;
default:
Console.WriteLine("{0} is not a valid choice", myChoice);
break;
}


Console.ReadLine();

Console.ReadLine();
Console.WriteLine();

} while (myChoice != "5"); // Keep going until the user wants to quit
}



string myChoice;


string getChoice()
{


// Print A Menu
Console.WriteLine("What would you like to do?");

Console.WriteLine("1 - Do you want to add two numbers?");
Console.WriteLine("2 - Do you want to subtract two numbers?");
Console.WriteLine("3 - Do you want to divide two numbers?");
Console.WriteLine("4 - Do you want to multiply two numbers?");
Console.WriteLine("5 - Quit\n");

Console.Write("Choice (1,2,3,4,or 5): ");


// Retrieve the user's choice
myChoice = Console.ReadLine();
Console.WriteLine();

return myChoice;
}
}
}

[QuinnJohns]

Please edit your post, after reading the following, in particular regarding posting code. Thanks.

Regards,
Quinn

[CreganTur]

Yeah, no one reads posts with long sections of code that aren't encased in code tags - [ code ] [ /code ] (remove spaces). they're often just too hard to read.

Also, this looks like homework. Tell us what you have tried or what conecpts you are having trouble with. There are a ton of articles that explain classes, so google may be a good first stop.