Text Censorer - C# Programming Exercise

// Importing necessary namespaces
using System;
using System.Collections.Generic;
using System.IO;

class TextCensorship
{
    // Main method where the program execution begins
    static void Main()
    {
        // Path to the input text file that will be censored
        string inputFilePath = "input.txt";
        
        // Path to the file containing the words to be censored (one word per line)
        string censorFilePath = "censorship_list.txt";
        
        // Path to the output file where the censored text will be written
        string outputFilePath = "output.txt";
        
        // Call the CensorText method to process the file and censor the words
        CensorText(inputFilePath, censorFilePath, outputFilePath);
    }

    // Method to read the input file, censor words, and write the result to a new file
    static void CensorText(string inputFilePath, string censorFilePath, string outputFilePath)
    {
        try
        {
            // Read the words to censor from the censorship list file
            HashSet wordsToCensor = new HashSet(File.ReadAllLines(censorFilePath));

            // Read the input text file into a string
            string inputText = File.ReadAllText(inputFilePath);

            // Loop through each word to censor and replace it with "[CENSORED]"
            foreach (var word in wordsToCensor)
            {
                // Replace all occurrences of the word (case-insensitive)
                inputText = inputText.Replace(word, "[CENSORED]", StringComparison.OrdinalIgnoreCase);
            }

            // Write the censored text to the output file
            File.WriteAllText(outputFilePath, inputText);

            Console.WriteLine("Text has been censored and written to the output file.");
        }
        catch (Exception ex)
        {
            // Catch any errors (e.g., file not found or read/write issues) and display an error message
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}