Conversor De Archivos - Ejercicio De Programacion C# Sharp

// Import the System namespace for basic functionality
using System;  

// Import the IO namespace for file handling
using System.IO;  

class FileInverter
{
    static void Main(string[] args)
    {
        // Ask the user to enter the path of the file to invert
        Console.WriteLine("Enter the path of the file to invert:");  
        
        // Get the file path entered by the user
        string inputFilePath = Console.ReadLine();  

        // Start of try block to catch any file or IO errors
        try
        {
            // Open the original file in read mode using BinaryReader
            using (BinaryReader reader = new BinaryReader(File.Open(inputFilePath, FileMode.Open)))
            {
                // Get the total length of the file (in bytes)
                long fileLength = reader.BaseStream.Length;  

                // Generate the output file path by appending ".inv" to the original file name
                string outputFilePath = inputFilePath + ".inv";  

                // Open the output file in write mode using BinaryWriter
                using (BinaryWriter writer = new BinaryWriter(File.Open(outputFilePath, FileMode.Create)))
                {
                    // Loop through the file in reverse order, from the last byte to the first
                    for (long i = fileLength - 1; i >= 0; i--) 
                    {
                        // Move the reader to the byte at the current position
                        reader.BaseStream.Seek(i, SeekOrigin.Begin);  
                        
                        // Read the byte at the current position
                        byte currentByte = reader.ReadByte();  

                        // Write the byte to the output file
                        writer.Write(currentByte);  
                    }
                }
            }

            // Inform the user that the inversion process is complete
            Console.WriteLine("File has been successfully inverted and saved as: " + inputFilePath + ".inv");
        }
        catch (Exception ex)  // Catch any exceptions that may occur during file operations
        {
            // Print the exception message if an error occurs
            Console.WriteLine("An error occurred: " + ex.Message);  
        }
    }
}

 Salida

Example Input (input.txt):
Hello
World

Example Output (input.txt.inv):
dlroW
olleH

Console Output:
Enter the path of the file to invert: input.txt
File has been successfully inverted and saved as: input.txt.inv

If an error occurs (e.g., the file doesn't exist), an error message will be displayed, such as:
An error occurred: The system cannot find the file specified.