C# calculator

//A simple calculator guide for total c# begginers




//prompts and gathering data
                Console.Write("Enter a number: ");
                int N1 = Convert.ToInt32(Console.ReadLine());

                Console.Write("Enter an operator: ");
                string op = Console.ReadLine();

                Console.Write("Enter a number: ");
                int N2 = Convert.ToInt32(Console.ReadLine());

                //if statements
                if (op == "+")
                {
                    Console.WriteLine(N1 + N2);
                }else if (op == "-")
                {
                    Console.WriteLine(N1 - N2);
                }else if (op == "*")
                {
                    Console.WriteLine(N1 * N2);
                }else if (op == "/")
                {
                    Console.WriteLine(N1 / N2);
                }
                else
                {
                    //if not stated operator, say "error"
                    Console.WriteLine("Error");
                }
            }
            catch
            {
                //if other problem spotted, say "error
                Console.Write("Error");
            }

Source: grepper.com

C# calculator

using System;

namespace Calculator
{
    class Calculator
    {
        static void Main(string[] args)
        {

            // basic homemade calculator vscode c# calculator

            Console.Write("Enter a number here: ");
            int num1 = Convert.ToInt32(Console.ReadLine());
            Console.Write("Enter another number: ");
            int num2 = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine(num1 + num2);
            // change the operation if you want to
            // ex: +, -, *, /, >, <
        }

    }
}

Source: grepper.com

Calculator in C#

using System;

class Program
{
    static void Main(string[] args)
    {
        float ans = 0;

        // Asking the user what operator to use by number
        Console.WriteLine("(1)Add\n(2)Subtract\n(3)Multiply\n(4)Divide");
        Console.WriteLine("Enter an operator: ");
        int op = int.Parse(Console.ReadLine());

        // Asking the first number and parsing it to a float
        Console.WriteLine("Enter the first number: ");
        float n1 = float.Parse(Console.ReadLine());

        // Asking the second number and parsing it to a float
        Console.WriteLine("Enter the second number: ");
        float n2 = float.Parse(Console.ReadLine());

        // Checking the value of op and then doing the correct operation
        if (op == 1)
        {
            ans = n1 + n2;
        }
        else if (op == 2)
        {
            ans = n1 - n2;
        }
        else if (op == 3)
        {
            ans = n1 * n2;
        }
        else if (op == 4)
        {
            ans = n1 / n2;
        }
        else
        {
            Console.WriteLine("Error operator unknown");
        }     

        // Printing the answer
        Console.WriteLine("The answer is " + ans);
    }
}

Source: grepper.com

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