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  1. //*******************************************************************************************************
  2. //
  3. //        File:                   NameReport.cpp
  4. //
  5. //        Student:                Anjali Shrestha
  6. //
  7. //        Assignment:             Program #8
  8. //
  9. //        Course Name:            Programming II
  10. //
  11. //        Course Number:          COSC 1560 02
  12. //
  13. //        Due:                    29th March 2024
  14. //
  15. //
  16. //        This program reads from a file.
  17. //
  18. //        Other files required:
  19. //            1.    ??? (say none if no other files are included)
  20. //
  21. //*******************************************************************************************************
  22.  
  23. #include <iostream>
  24. #include <fstream>
  25. #include <cstring>
  26. #include <string>
  27. using namespace std;
  28.  
  29. //*******************************************************************************************************
  30.  
  31. int getChoice ();
  32. void handleMenu (ifstream & );
  33. void displayFirstFive (ifstream & );
  34. void displayLastFive (ifstream & );
  35. int count (ifstream & );
  36. void addNewNames ();
  37.  
  38. //*******************************************************************************************************
  39.  
  40. int main()
  41. {
  42.     ifstream file;
  43.     file.open ("names.txt");
  44.  
  45.     if (file.fail())
  46.     {
  47.         cout << "Cannot open file" << endl;
  48.     }
  49.     else
  50.     {
  51.         handleMenu(file);
  52.         file.close();
  53.     }
  54.  
  55.     return 0;
  56. }
  57.  
  58. //*******************************************************************************************************
  59.  
  60. int getChoice ()
  61. {
  62.     int choice;
  63.  
  64.     do
  65.     {
  66.         cout << string (40, '*') << endl;
  67.         cout << "1. Display first five names" << endl
  68.              << "2. Display last five names" << endl
  69.              << "3. Count the number of names" << endl
  70.              << "4. Add a new name" << endl
  71.              << "5. Quit" << endl;
  72.         cout << string (40, '*') << endl;
  73.  
  74.         cout << "\nEnter your choice: ";
  75.         cin  >> choice;
  76.     }
  77.     while (choice < 1 || choice > 5);
  78.  
  79.     return choice;
  80. }
  81.  
  82. //*******************************************************************************************************
  83.  
  84. void handleMenu (ifstream & fin)
  85. {
  86.     const int DISPLAY_FIRST_FIVE = 1,
  87.               DISPLAY_LAST_FIVE = 2,
  88.               COUNT = 3,
  89.               ADD_NEW_NAMES = 4,
  90.               QUIT = 5;
  91.  
  92.     bool quit = false;
  93.  
  94.     while (!quit)
  95.     {
  96.         int choice = getChoice();
  97.  
  98.         switch (choice)
  99.         {
  100.             case DISPLAY_FIRST_FIVE:
  101.                 displayFirstFive(fin);
  102.                 cout << endl;
  103.                 break;
  104.  
  105.             case DISPLAY_LAST_FIVE:
  106.                 displayLastFive(fin);
  107.                 cout << endl;
  108.                 break;
  109.  
  110.             case COUNT:
  111.                 cout << "There are " << count(fin) << " names" << endl;
  112.                 cout << endl;
  113.                 break;
  114.  
  115.             case ADD_NEW_NAMES:
  116.                 addNewNames();
  117.                 cout << endl;
  118.                 break;
  119.  
  120.             case QUIT:
  121.                 quit = true;
  122.                 cout << "Over!" << endl;
  123.                 break;
  124.  
  125.             default:
  126.                 cout << "!!! Choice out of range 1 - 5" << endl;
  127.                 break;
  128.         }
  129.     }
  130. }
  131.  
  132. //*******************************************************************************************************
  133.  
  134. void displayFirstFive (ifstream & fin)
  135. {
  136.     fin.clear();
  137.     fin.seekg(0L, ios::beg);
  138.  
  139.     char names[81];
  140.  
  141.     for (int i = 0; i < 5; i++)
  142.     {
  143.         fin.getline(names, 81);
  144.         cout << i + 1 << ". " << names << endl;
  145.     }
  146. }
  147.  
  148. //*******************************************************************************************************
  149.  
  150.  
  151. int count(ifstream & fin)
  152. {
  153.     fin.clear();
  154.     fin.seekg(0L, ios::beg);
  155.     int count = 0;
  156.  
  157.     char names[81];
  158.  
  159.     while (fin.getline(names, 81))
  160.     {
  161.         count++;
  162.     }
  163.  
  164.     return count;
  165. }
  166.  
  167. //*******************************************************************************************************
  168.  
  169. void displayLastFive(ifstream & fin)
  170. {
  171.     fin.clear();
  172.     fin.seekg(0L, ios::beg);
  173.  
  174.     char names[81];
  175.     int totalNumberOfLines = count(fin);
  176.  
  177.     for (int i = 0; i < totalNumberOfLines; i++)
  178.     {
  179.         fin.getline(names, 81);
  180.         if ( i >= totalNumberOfLines - 5)
  181.             cout << i << ". " << names << endl;
  182.     }
  183.  
  184. }
  185.  
  186. //*******************************************************************************************************
  187.  
  188.  
  189. void addNewNames()
  190. {
  191.     ofstream fout;
  192.     fout.open("names.txt", ios::app);
  193.  
  194.     char names[81];
  195.  
  196.     if (fout.fail())
  197.     {
  198.         cout << "Cannot open file." << endl;
  199.     }
  200.     else
  201.     {
  202.         cout << "Adding a name" << endl;
  203.         cout << "Enter a name: ";
  204.         cin.ignore();
  205.         cin.get (names, 81);
  206.         fout << names << endl;
  207.         fout.close();
  208.     }
  209. }
  210.  
  211. //*******************************************************************************************************
  212.  
  213. // attach your sample output here.
  214.  
Success #stdin #stdout 0.01s 5152KB
comments (?)
stdin
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Standard input is empty
stdout
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Cannot open file
https://ideone.com/waGbHq
language:
C++ (gcc 8.3)
created:
30 days ago
visibility:
public

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