Función Calculadora, Parámetros De Main - Ejercicio De Programacion C# Sharp

// Import the System namespace to use basic classes like Console
using System;

class Program
{
    // Main method to drive the program
    public static void Main(string[] args)
    {
        // Check if the correct number of arguments (3) are passed
        if (args.Length != 3)
        {
            Console.WriteLine("Error: Please provide two numbers and an operator.");
            return;
        }

        // Parse the first number and operator from the command line arguments
        double num1 = double.Parse(args[0]);
        string operatorSign = args[1];
        double num2 = double.Parse(args[2]);

        // Perform the calculation based on the operator
        double result = 0;
        bool validOperation = true;

        // Switch statement to handle different operations
        switch (operatorSign)
        {
            case "+":
                result = num1 + num2;
                break;
            case "-":
                result = num1 - num2;
                break;
            case "*":
            case "x": // Allow 'x' as multiplication sign
                result = num1 * num2;
                break;
            case "/":
                if (num2 == 0)
                {
                    Console.WriteLine("Error: Cannot divide by zero.");
                    validOperation = false;
                }
                else
                {
                    result = num1 / num2;
                }
                break;
            default:
                Console.WriteLine("Error: Invalid operator. Use +, -, *, x, or /.");
                validOperation = false;
                break;
        }

        // Output the result if the operation is valid
        if (validOperation)
        {
            Console.WriteLine($"Result: {result}");
        }
    }
}

 Salida

-- Case 1: Execution with incorrect number of arguments
dotnet run
Error: Please provide two numbers and an operator.

-- Case 2: Execution with addition operation
dotnet run 5 + 3
Result: 8

-- Case 3: Execution with subtraction operation
dotnet run 10 - 4
Result: 6

-- Case 4: Execution with multiplication operation using '*' symbol
dotnet run 6 * 7
Result: 42

-- Case 5: Execution with multiplication operation using 'x' symbol
dotnet run 6 x 7
Result: 42

-- Case 6: Execution with division operation
dotnet run 8 / 2
Result: 4

-- Case 7: Execution with division by zero
dotnet run 10 / 0
Error: Cannot divide by zero.

-- Case 8: Execution with invalid operator
dotnet run 5 & 3
Error: Invalid operator. Use +, -, *, x, or /.