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  1. // Attached: HW_2a
  2. // ===========================================================
  3. // File: HW_2a
  4. // ===========================================================
  5. // Programmer: Elaine Torrez
  6. // Class: CMPR 121
  7. // ===========================================================
  8.  
  9. #include <iostream>
  10. #include <iomanip>
  11. #include <limits>
  12. using namespace std;
  13.  
  14. // Function prototypes
  15. void getScores(double scores[], int size);
  16. void showMenu();
  17. char getChoice();
  18. void displayResult(char choice, double scores[], int size);
  19. void clearScreen();
  20.  
  21. int main()
  22. {
  23.     const int SIZE = 5;
  24.     double testScores[SIZE];
  25.     char choice;
  26.  
  27.     getScores(testScores, SIZE);
  28.  
  29.     clearScreen();
  30.     showMenu();
  31.  
  32.     choice = getChoice();
  33.  
  34.     displayResult(choice, testScores, SIZE);
  35.  
  36.     return 0;
  37. }
  38.  
  39. // ===========================================================
  40.  
  41. void getScores(double scores[], int size)
  42. {
  43.     cout << "Enter 5 test scores:\n";
  44.  
  45.     for (int i = 0; i < size; i++)
  46.     {
  47.         cin >> scores[i];
  48.     }
  49. }
  50.  
  51. // ===========================================================
  52.  
  53. void showMenu()
  54. {
  55.     cout << "A.) Calculate the average of the test scores.\n";
  56.     cout << "B.) Display all test scores\n";
  57. }
  58.  
  59. // ===========================================================
  60.  
  61. char getChoice()
  62. {
  63.     char choice;
  64.     cout << "Enter your choice: ";
  65.     cin >> choice;
  66.     return choice;
  67. }
  68.  
  69. // ===========================================================
  70.  
  71. void displayResult(char choice, double scores[], int size)
  72. {
  73.     clearScreen();
  74.  
  75.     switch (choice)
  76.     {
  77.         case 'A':
  78.         case 'a':
  79.         {
  80.             double sum = 0;
  81.  
  82.             for (int i = 0; i < size; i++)
  83.                 sum += scores[i];
  84.  
  85.             double average = sum / size;
  86.  
  87.             cout << fixed << setprecision(2);
  88.             cout << "The average is " << average << endl;
  89.             break;
  90.         }
  91.  
  92.         case 'B':
  93.         case 'b':
  94.         {
  95.             cout << "Test scores:\n";
  96.             cout << fixed << setprecision(2);
  97.  
  98.             for (int i = 0; i < size; i++)
  99.                 cout << scores[i] << endl;
  100.             break;
  101.         }
  102.  
  103.         default:
  104.             cout << "Invalid entry!" << endl;
  105.     }
  106.  
  107.     cout << "Press any key to continue . . .";
  108.     cin.ignore(numeric_limits<streamsize>::max(), '\n');
  109.     cin.get();
  110. }
  111.  
  112. // ===========================================================
  113.  
  114. void clearScreen()
  115. {
  116.     system("cls");   // Windows
  117.     // system("clear"); // Mac/Linux
  118. }
  119.  
Success #stdin #stdout #stderr 0.01s 5320KB
comments (?)
stdin
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99
77
86
59
92
A
stdout
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Enter 5 test scores:
A.) Calculate the average of the test scores.
B.) Display all test scores
Enter your choice: The average is 82.60
Press any key to continue . . .
stderr
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sh: 1: cls: not found
sh: 1: cls: not found
https://ideone.com/ldjmNh
language:
C++ (gcc 8.3)
created:
14 hours ago
visibility:
public

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