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string-processing-system [FALAR] #35

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11 changes: 11 additions & 0 deletions Program.cs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,11 @@
using System;

public class Program
{
public static void Main(String[] args)
{
StringView view = new StringView();

view.Menu();
}
}
81 changes: 81 additions & 0 deletions Service/StringService.cs
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Original file line number Diff line number Diff line change
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using System;

public class StringService
{
public void CheckNullOrEmpty(String text)
{
if (string.IsNullOrEmpty(text))
{
Console.WriteLine("Enter a text first");
Console.WriteLine();
Console.WriteLine();
}
}

public void ConvertUppercase(String text)
{
if (string.IsNullOrEmpty(text))
{
CheckNullOrEmpty(text);
}
else
{
Console.WriteLine(text.ToUpper());
Console.WriteLine();
Console.WriteLine();
}

}
public void ConvertLowercase(String text)
{
if (string.IsNullOrEmpty(text))
{
CheckNullOrEmpty(text);
}
else
{
Console.WriteLine(text.ToLower());
Console.WriteLine();
Console.WriteLine();
}
}
public int CountCharacters(String text)
{
return text.Length;
}
public bool Contains(String text, String searchWord)
{
if(string.IsNullOrEmpty(text) || string.IsNullOrEmpty(searchWord))
{
return false;
}
return text.Contains(searchWord);
}
public string ReplaceWord(string currentText, string oldWord, string newWord)
{
if (string.IsNullOrEmpty(currentText))
{
return "";
}
return currentText.Replace(oldWord, newWord);
}

public string Substring(string input, int startIndex, int length)
{
if (string.IsNullOrEmpty(input)) return "";

return input.Substring(startIndex, length);
}

public string Trim(string input)
{
if (string.IsNullOrEmpty(input)) return "";

return input.Trim();
}

public String Reset(string originalText)
{
return originalText;
}
}
138 changes: 138 additions & 0 deletions View/StringView.cs
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using System;

public class StringView
{
public void Menu()
{
StringService service = new StringService();
String text = "";
String originalText = "";

bool running = true;
while (running)
{

Console.WriteLine("---- Display Menu ----");
Console.WriteLine();
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");

String displayOptions = Console.ReadLine();

switch (displayOptions)
{
case "1":
Console.WriteLine("Enter a text: ");
text = Console.ReadLine();
Console.WriteLine();
Console.WriteLine();
break;

case "2":
if (string.IsNullOrEmpty(text))
{
service.CheckNullOrEmpty(text);
}
else
{
Console.WriteLine(text);
Console.WriteLine();
Console.WriteLine();
}
break;

case "3":
service.ConvertUppercase(text);
break;

case "4":
service.ConvertLowercase(text);
break;

case "5":
if(string.IsNullOrEmpty(text))
{
service.CheckNullOrEmpty(text);
}
else
{
int count = service.CountCharacters(text);

Console.WriteLine($"Characters Count: {count}");
}
break;
case "6":
Console.Write("Enter the word to search for: ");
string word = Console.ReadLine();

bool found = service.Contains(text, word);

if (found)
{
Console.WriteLine($"Result: Yes, the word '{word}' was found!");
}
else
{
Console.WriteLine($"Result: No, the word '{word}' is not in the text.");
}
Console.WriteLine();
break;

case "7":
if (string.IsNullOrEmpty(text))
{
Console.WriteLine("Error: Please enter text first (Option 1).");
}
else
{
Console.Write("Enter the word you want to change: ");
string target = Console.ReadLine();

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

text = service.ReplaceWord(text, target, replacement);

Console.WriteLine($"Updated Text: {text}");
}
Console.WriteLine();
break;

case "8":
Console.Write("Enter starting index (0 is the first letter): ");
int.TryParse(Console.ReadLine(), out int start);

Console.Write("Enter how many characters to extract: ");
int.TryParse(Console.ReadLine(), out int len);

string result = service.Substring(text, start, len);
Console.WriteLine($"Extracted part: {result}");
break;

case "9":
text = service.Trim(text); // Update the text variable
Console.WriteLine("Spaces trimmed from the ends!");
break;

case "10":
text = service.Reset(originalText);
Console.WriteLine("Text reset to original!");
break;

case "11":
Console.Write("Exiting...");
running = false;
break;
}
}
}
}