Rectángulo Hueco - Ejercicio De Programacion C# Sharp

using System; // Importing the System namespace to use Console functionalities

class Program
{
    // Main method where the program execution begins
    static void Main()
    {
        // Prompt the user to enter a symbol
        Console.Write("Enter a symbol: ");
        char symbol = Console.ReadKey().KeyChar; // Read a symbol from the user
        Console.WriteLine(); // Move to the next line after symbol input

        // Prompt the user to enter the desired width
        Console.Write("Enter the desired width: ");
        int width = int.Parse(Console.ReadLine()); // Read the width and convert it to integer

        // Prompt the user to enter the desired height
        Console.Write("Enter the desired height: ");
        int height = int.Parse(Console.ReadLine()); // Read the height and convert it to integer

        // Loop through each row
        for (int i = 0; i < height; i++)
        {
            // Loop through each column in the current row
            for (int j = 0; j < width; j++)
            {
                // Check if it's the border (first or last row, or first or last column)
                if (i == 0 || i == height - 1 || j == 0 || j == width - 1)
                {
                    Console.Write(symbol); // Print the symbol for the border
                }
                else
                {
                    Console.Write(" "); // Print space for the inner part of the rectangle
                }
            }
            Console.WriteLine(); // Move to the next line after each row
        }
    }
}

 Salida

Case 1:
Enter a symbol: #
Enter the desired width: 5
Enter the desired height: 4
#####
#   #
#   #
#####

Case 2:
Enter a symbol: *
Enter the desired width: 6
Enter the desired height: 3
******
*    *
******

Case 3:
Enter a symbol: $
Enter the desired width: 7
Enter the desired height: 5
$$$$$$$
$     $
$     $
$     $
$$$$$$$