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  1. #include <stdio.h>
  2. #include <ctype.h> /* for the toupper function */
  3.  
  4. int main ()
  5. {
  6.  
  7.     char answer [80];  /* string to hold user response */
  8.     char grade;        /* your exam grade */
  9.  
  10.     /* Ask student for their exam grade */
  11.     printf ("\n Enter your exam grade: ");
  12.     grade = getchar();
  13.  
  14.     /* convert character to upper case using the C library function toupper */
  15.     grade = toupper ( grade );
  16.  
  17.     /* Skip a few lines */
  18.     printf ("\n\n");
  19.  
  20.     /* Student Self Service based on their grade */
  21.     switch ( grade )
  22.     {
  23.  
  24.         case 'A':
  25.  
  26.             printf ("\nExcellent Job: Grade is an A \n");
  27.             break;
  28.  
  29.         case 'B':
  30.  
  31.             printf ("\nGood Job: Grade is a B \n");
  32.             printf ("\nWould you like an A? (y/n): ");
  33.             scanf ("%s", answer);
  34.  
  35.             /* Come on, answer yes, professor needs a new electronic toy */
  36.             if ( answer [0] == 'y' || answer [0] == 'Y' )
  37.             {
  38.                 /* All right, a customer */
  39.                 printf ("\n Make check payable to Tim Niesen for $200 \n");
  40.                 printf ("... a small price to pay for your education \n");
  41.             }
  42.  
  43.             break;
  44.  
  45.         case 'C':
  46.  
  47.             printf ("\nFair Job: Grade is a C \n");
  48.             printf ("Would you like an A? (y/n): ");
  49.             scanf ("%s", answer);  /* we'll discuss strings next week, but its a series of characters */
  50.  
  51.             /* time to make some real money, my favorite students */
  52.             if ( answer [0] == 'y' || answer [0] == 'Y' )
  53.             {
  54.                 printf ("\n Make check payable to Tim Niesen for $600 \n");
  55.                 printf ("... an excellent price to pay for your education \n");
  56.             }
  57.             else 
  58.             {
  59.                 printf ("\nWould you like an B? (y/n): ");
  60.                 scanf ("%s", answer);
  61.  
  62.                 if ( answer [0] ==  'y'  ||  answer [0] ==  'Y' )
  63.                 {
  64.                    printf ("\nMake check payable to Tim Niesen for $400 \n");
  65.                    printf ("... a great price to pay for your education \n");
  66.                 } /* if */
  67.             } /* else */
  68.  
  69.             break;
  70.  
  71.         case 'D':
  72.  
  73.             printf ("\n Poor Job: Grade is a D \n");
  74.             printf ("... You're beyond a bribe to get a better grade \n");
  75.             break;
  76.  
  77.         case 'F':
  78.  
  79.             printf ("\n Looks like you Failed. Grade is a F \n");
  80.             break;
  81.  
  82.         default: /* if it gets here, not a valid grade */
  83.  
  84.             printf ("\n Invalid/Incomplete Grade ... can not process ...\n");
  85.             break;  /* optional, but recommended */
  86.  
  87.     } /* switch */
  88.  
  89.     return (0);
  90.  
  91. } /* main */
  92.  
Success #stdin #stdout 0s 5276KB
comments (?)
stdin
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n
stdout
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 Enter your exam grade: 


 Invalid/Incomplete Grade ... can not process ...
https://ideone.com/uoTVtk
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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