Question

write a program that ask a user to enter a number n and display the first n even number

Answer 1

public static void Main()
    {


        Console.Write("Enter a number: ");
        string input = Console.ReadLine();


        if(!int.TryParse(input, out int value))
        {
            Console.WriteLine("Incorrect input. Press any key..");
            return;
        }


        Console.Write($"Even numbers: {string.Join(" ", Enumerable.Range(0, value + 1).Where(n => n % 2 == 0).ToArray())}");
        Console.ReadLine();
    }