File Handling Program

This program is designed to search for .txt files within a given directory and its subdirectories, and append a specified text to each of those files. The code has been improved to handle subdirectories, properly manage resources, and enhance consistency.

Changes Made

The following improvements were made to the original code to enhance its functionality.

1. Directory Traversal Fix

Issue: The original code only traversed the top-level directory and failed to handle subdirectories.

Solution: The directory traversal was updated to ensure that all subdirectories are scanned for .txt files.

Old Code:

GetTxtFiles(directoryPath, txtFiles);

New Code

GetTxtFiles(subdirectory, txtFiles);

2. Correct Resource Disposal (StreamWriter)

Old Code:

StreamWriter writer = null;
writer = File.AppendText(filePath);
writer.WriteLine(textToAppend);

New Code

using (StreamWriter writer = File.AppendText(filePath))
{
 writer.WriteLine(textToAppend);
}

3. Method Name Consistency

Old Code:

static void AppendTextToFiles(string filePath, string textToAppend)

New Code

static void AppendTextToFile(string filePath, string textToAppend)