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string-processing-system [BADILLES] #33

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518429d
Add main program to initiate StringView
Bsharlene Feb 28, 2026
e11eaec
Implement StringService for text manipulation
Bsharlene Feb 28, 2026
4f4c802
Implement StringView with text manipulation features
Bsharlene Feb 28, 2026
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13 changes: 13 additions & 0 deletions StringProcessingApp/Program.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,13 @@
using StringProcessingApp.Views;

namespace StringProcessingApp
{
class Program
{
static void Main(string[] args)
{
StringView view = new StringView();
view.Run();
}
}
}
61 changes: 61 additions & 0 deletions StringProcessingApp/Services/StringService.cs
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using System;

namespace StringProcessingApp.Services
{
public class StringService
{
private string _currentText = "";
private string _originalText = "";

public void SetText(string text)
{
_currentText = text;
_originalText = text;
}

public string GetText()
{
return _currentText;
}

public void ToUpperCase()
{
_currentText = _currentText.ToUpper();
}

public void ToLowerCase()
{
_currentText = _currentText.ToLower();
}

public int CountCharacters()
{
return _currentText.Length;
}

public bool ContainsWord(string word)
{
return _currentText.Contains(word);
}

public void ReplaceWord(string oldWord, string newWord)
{
_currentText = _currentText.Replace(oldWord, newWord);
}

public void ExtractSubstring(int startIndex, int length)
{
_currentText = _currentText.Substring(startIndex, length);
}

public void TrimSpaces()
{
_currentText = _currentText.Trim();
}

public void ResetText()
{
_currentText = _originalText;
}
}
}
142 changes: 142 additions & 0 deletions StringProcessingApp/Views/StringView.cs
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using System;
using StringProcessingApp.Services;

namespace StringProcessingApp.Views
{
public class StringView
{
private readonly StringService _service;

public StringView()
{
_service = new StringService();
}

public void Run()
{
bool isRunning = true;

while (isRunning)
{
DisplayMenu();
Console.Write("Choose an option: ");
string choice = Console.ReadLine();

Console.WriteLine();

switch (choice)
{
case "1":
EnterText();
break;
case "2":
ViewText();
break;
case "3":
_service.ToUpperCase();
Console.WriteLine("Converted to UPPERCASE.");
break;
case "4":
_service.ToLowerCase();
Console.WriteLine("Converted to lowercase.");
break;
case "5":
Console.WriteLine("Character Count: " + _service.CountCharacters());
break;
case "6":
CheckContains();
break;
case "7":
ReplaceWord();
break;
case "8":
ExtractSubstring();
break;
case "9":
_service.TrimSpaces();
Console.WriteLine("Spaces trimmed.");
break;
case "10":
_service.ResetText();
Console.WriteLine("Text reset to original.");
break;
case "11":
isRunning = false;
Console.WriteLine("Exiting program...");
break;
default:
Console.WriteLine("Invalid option.");
break;
}

Console.WriteLine();
}
}

private void DisplayMenu()
{
Console.WriteLine("Menu Options");
Console.WriteLine("1. Enter Text");
Console.WriteLine("2. View Current Text");
Console.WriteLine("3. Convert to UPPERCASE");
Console.WriteLine("4. Convert to lowercase");
Console.WriteLine("5. Count Characters");
Console.WriteLine("6. Check if Contains Word");
Console.WriteLine("7. Replace Word");
Console.WriteLine("8. Extract Substring");
Console.WriteLine("9. Trim Spaces");
Console.WriteLine("10. Reset Text");
Console.WriteLine("11. Exit");
Console.WriteLine("===========================");
}

private void EnterText()
{
Console.Write("Enter your text: ");
string text = Console.ReadLine();
_service.SetText(text);
Console.WriteLine("Text saved successfully.");
}

private void ViewText()
{
Console.WriteLine("Current Text: " + _service.GetText());
}

private void CheckContains()
{
Console.Write("Enter word to check: ");
string word = Console.ReadLine();

bool result = _service.ContainsWord(word);

Console.WriteLine(result
? "Word exists in text."
: "Word not found.");
}

private void ReplaceWord()
{
Console.Write("Enter word to replace: ");
string oldWord = Console.ReadLine();

Console.Write("Enter new word: ");
string newWord = Console.ReadLine();

_service.ReplaceWord(oldWord, newWord);
Console.WriteLine("Word replaced successfully.");
}

private void ExtractSubstring()
{
Console.Write("Enter start index: ");
int start = int.Parse(Console.ReadLine());

Console.Write("Enter length: ");
int length = int.Parse(Console.ReadLine());

_service.ExtractSubstring(start, length);
Console.WriteLine("Substring extracted.");
}
}
}