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Crowe182 Crowe182 is offline Offline
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C Help!!!

 
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  #1
Oct 7th, 2003
I am writing this program for my computer class. I am having a problem with my do/while loop. I can go through my main IF statement, but when I go through the loop a second time, I enter 'S' os 's' for computer type it skips past the main IF statement. Do i need to clear my computer variable before going through the loop again, if so how do I do that. Please help.

Thanks,

Crowe182

_________
C Syntax (Toggle Plain Text) 
  1. #include <iostream.h>
  2. #include <stdio.h>
  3.  
  4. void main()
  5. {
  6.    char mon,
  7.           prin,
  8.           computer;
  9.  
  10.  
  11.    int customer = 0,
  12.        pentium = 0,
  13.        pentium2 = 0,
  14.        response;
  15.  
  16.   double s = 0, //pentium
  17.             p = 0, //pentium II
  18.             printer = 0,
  19.             monitor = 0,
  20.             sub_total = 0,
  21.             total = 0,
  22.             days = 0;
  23.  
  24.   do
  25.   {
  26.  
  27.     printf("\nDo you want to rent a Pentium or a Pentium II system? ");
  28.     printf("\nEnter 'S' for a Pentium or 'P' for a Pentium II: ");
  29.     getchar();
  30.     computer = getchar();
  31.  
  32.     printf("\nEnter the number of days you want to rent computer: ");
  33.     scanf("%lf", &days);
  34.  
  35.     if ((computer == 'S') || (computer == 's')) //Pentium
  36.     {
  37.          printf("\nDo you want to rent a printer (y/n): ");
  38.          getchar();
  39.          prin = getchar();
  40.  
  41.          if ((prin == 'Y') || (prin == 'y')) //Printer
  42.          {
  43.              printf("\nDo you want to rent a monitor (y/n): ");
  44.              getchar();
  45.              mon = getchar();
  46.  
  47.              if ((mon == 'Y') || (mon == 'y')) //Monitor
  48.              {
  49.                   monitor += 15.00;
  50.                   sub_total = monitor * days;
  51.              }
  52.              else //No Monitor
  53.              {
  54.                   printer += 13.50;
  55.                   sub_total = printer * days;
  56.              }
  57.          }
  58.          else //No Printer
  59.          {
  60.              printf("\nDo you want to rent a monitor (y/n): ");
  61.              getchar();
  62.              mon = getchar();
  63.  
  64.              if ((mon == 'Y') || (mon == 'y')) //Monitor or Not
  65.              {
  66.                  monitor = 12.50;
  67.                  sub_total = monitor * days;
  68.              }
  69.              else //No Monitor
  70.              {
  71.                  p += 10.50;
  72.                  sub_total = p * days;
  73.              }
  74.          }
  75.     printf("\nYour subtotal is $ %7.2f", sub_total);
  76.     ++pentium;
  77.     }
  78.     else // Pentium II
  79.     {
  80.         printf("\nDo you want to rent a printer (y/n): ");
  81.         getchar();
  82.         prin = getchar();
  83.  
  84.         if ((prin == 'Y') || (prin == 'y')) //Printer
  85.         {
  86.               printf("\nDo you want to rent a monitor (y/n): ");
  87.               getchar();
  88.               mon = getchar();
  89.  
  90.               if ((mon == 'Y') || (mon == 'y')) //Monitor
  91.               {
  92.                     monitor += 21.00;
  93.                     sub_total = monitor * days;
  94.               }
  95.               else //No Monitor
  96.               {
  97.                     printer += 19.00;
  98.                     sub_total = printer * days;
  99.               }
  100.         } 
  101.         else //No Printer
  102.         { 
  103.                printf("\nDo you want to rent a monitor (y/n): ");
  104.                getchar();
  105.                mon = getchar();
  106.  
  107.                if ((mon == 'Y') || (mon == 'y')) //Monitor or Not
  108.                {
  109.                      monitor = 18.50;
  110.                      sub_total = monitor * days;
  111.                }
  112.                else //No Monitor
  113.                {
  114.                      p += 15.50;
  115.                      sub_total = p * days;
  116.                }
  117.         }
  118.     printf("\nYour subtotal is $ %7.2f", sub_total);
  119.     ++pentium2;
  120.     } 
  121.     printf("\nDo you want to rent another computer?(y/n) ");
  122.     getchar();
  123.     response = getchar();
  124.     total += sub_total;
  125.     ++customer;
  126.     }
  127.     while ((response == 'Y') || (response == 'y'));
  128.     printf("\nThe total number of customers are: %d", customer);
  129.     printf("\nThe total number of Pentium's rented are: %d", pentium);
  130.     printf("\nThe total number of Pentium II's rented are: %9d", pentium2);
  131.     printf("\nThe total rental charges for all the computers: %17.2f\n", total);
  132.     }
Last edited by Crowe182; Oct 7th, 2003 at 2:14 pm.
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Re: C Help!!!

 
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  #2
Oct 7th, 2003
Ergh, It's very difficult to read your code like that. Isn't there a code option or something?

Found it.

When typing code, wrap it in [CODE] and [/CODE] tags; and then indent stuff using the [INDENT] and [/INDENT]; for example:

C Syntax (Toggle Plain Text) 
  1. // This is some code:
  2.  
  3. if( something == true || somethingelse != false )
  4. {<blockquote>
  5. // This has been indented using the Indent tags.
  6. printf('blah blah blah');
  7. </blockquote>}
Roberdin

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Re: C Help!!!

 
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  #3
Oct 7th, 2003
OK got the changes made. How is that??
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Re: C Help!!!

 
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  #4
Oct 7th, 2003
Remember, you can also go to the user control panel, and somewhere in your preference options, you can set to use a WYSIWYG editor to edit posts. Unfortunately, I have to run off to class in a few minutes, so don't really have time to look at this program right now.
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Re: C Help!!!

 
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  #5
Oct 7th, 2003
no problem, just let me know when you get a chance.

Thanks....
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