Convert Any File To Uppercase - C# Programming Exercise

// Importing the System namespace for basic functionalities like Console I/O
using System;

// Importing the System.IO namespace to handle file operations like reading and writing files
using System.IO;

class ConvertToUppercaseFile  // Define the class ConvertToUppercaseFile
{
    // Method to read a file, convert its content to uppercase, and save it to a new file
    public static void ConvertFileToUppercase(string inputFileName, string outputFileName)
    {
        string fileContent = File.ReadAllText(inputFileName);  // Reading the content of the input file
        string uppercasedContent = fileContent.ToUpper();  // Converting the file content to uppercase
        File.WriteAllText(outputFileName, uppercasedContent);  // Writing the uppercase content to the output file
        Console.WriteLine($"File content has been converted to uppercase and saved to {outputFileName}");  // Printing a confirmation message
    }

    // Main method - entry point of the program
    static void Main(string[] args)
    {
        Console.Write("Enter the input file name (with extension): ");  // Asking the user for the input file name
        string inputFileName = Console.ReadLine();  // Reading the input file name entered by the user
        string outputFileName = Path.GetFileNameWithoutExtension(inputFileName) + "_uppercase" + Path.GetExtension(inputFileName);  // Creating the output file name with "_uppercase" suffix
        ConvertToUppercaseFile.ConvertFileToUppercase(inputFileName, outputFileName);  // Calling the method to convert the file content to uppercase
    }
}