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having problem with an if statement...

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having problem with an if statement...

 
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  #1
Feb 21st, 2009
The problem that i am working asks to calculate a customer's monthly bill. The customer has to input their name, which package they purchased, and how many hours were used. For example package a is for 9.95 a month 10 hours of access provided. Additional hours are 2.00 per hour. Im wondering if my syntax is correct...here's what i have so far... 
#include <iostream>
#include <string>
#include <iomanip>


using namespace std;

int main()
{
    //Declare variables
    const double PACKAGE_A_RATE = 9.95;
    const double PACKAGE_B_RATE = 14.95;
    const double PACKAGE_C_RATE = 19.95;
    
    char packageA;
    char packageB;
    char packageC;
    char packageName;
    double packageACharge;
    double packageBCharge;
    double packageCCharge;
    double hours;
    double totalDue;
    string customerName;
    
    
 
    
    
    
    cout << "Enter your name: ";
    cin >> customerName;
    
    cout << "Enter the package you purchased: ";
    cin >> packageName;
    
    cout << "Enter the number of hours used: ";
    cin >> hours;
    
    if(hours ==10)
    {
             packageACharge = PACKAGE_A_RATE;
    }
    else if(hours > 10)
    {
         packageACharge = (packageACharge + hours) % 2;
         
         cout << packageACharge<<endl;
    
    }
    
    
    system("pause");
    return 0;
}

can anyone help?
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Re: having problem with an if statement...

 
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  #2
Feb 22nd, 2009
if i did your math right then the problem was with your math (you used a % not a *) not with the if statement and i switched your package name to a string but you can switch it back if you like...hope this helps (it does compile now)

c++ Syntax (Toggle Plain Text) 
  1. #include <iostream>
  2. #include <string>
  3. #include <iomanip>
  4.  
  5.  
  6. using namespace std;
  7.  
  8. int main()
  9. {
  10.     //Declare variables
  11.     const double PACKAGE_A_RATE = 9.95;
  12.     const double PACKAGE_B_RATE = 14.95;
  13.     const double PACKAGE_C_RATE = 19.95;
  14.  
  15.     char packageA = ' ';
  16.     char packageB = ' ';
  17.     char packageC = ' ';
  18.     string packageName = "";
  19.     double packageACharge = 0.0;
  20.     double packageBCharge = 0.0;
  21.     double packageCCharge = 0.0;
  22.     double hours = 0.0;
  23.     double totalDue = 0.0;
  24.     string customerName = "";
  25.  
  26.  
  27.  
  28.  
  29.  
  30.  
  31.     cout << "Enter your name: ";
  32.     cin >> customerName;
  33.  
  34.     cout << "Enter the package you purchased: ";
  35.     cin >> packageName;
  36.  
  37.     cout << "Enter the number of hours used: ";
  38.     cin >> hours;
  39.  
  40.     if(hours ==10)
  41.     {
  42.              packageACharge = PACKAGE_A_RATE;
  43.              cout << packageACharge<<endl;
  44.     }
  45.     else if(hours > 10)
  46.     {
  47.          packageACharge = (packageACharge +((hours - 10) * 2))+10;
  48.  
  49.          cout << packageACharge<<endl;
  50.  
  51.     }
  52.  
  53.  
  54.     system("pause");
  55.     return 0;
  56. }


by the way use code tags to display your code properly here...the other people might get mad if you dont!
[ code = c++ ] <---beginning tag
[ / code ] <--ending tag ((both with no spaces))
Last edited by dvsConcept; Feb 22nd, 2009 at 12:40 am.
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Re: having problem with an if statement...

 
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  #3
Feb 22nd, 2009
can i do the same format for packages b-c?
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Re: having problem with an if statement...

 
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  #4
Feb 22nd, 2009
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Originally Posted by cassie_sanford View Post
can i do the same format for packages b-c?
yes it will work just fine for b-c
Last edited by dvsConcept; Feb 22nd, 2009 at 12:42 am.
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Re: having problem with an if statement...

 
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  #5
Feb 22nd, 2009
For example, if the user uses 12 hours and the package calls for 9.95 per month 10 hrs of access, my answer on the calculator came out to be 13.95
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Re: having problem with an if statement...

 
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  #6
Feb 22nd, 2009
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Originally Posted by cassie_sanford View Post
For example, if the user uses 12 hours and the package calls for 9.95 per month 10 hrs of access, my answer on the calculator came out to be 13.95
ok let me change the way we are calculating because this is the answer you need right? one sec while i adjust the calculation
Last edited by dvsConcept; Feb 22nd, 2009 at 12:47 am.
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Re: having problem with an if statement...

 
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  #7
Feb 22nd, 2009
this will end with the answer you expected from your example ($13.95)

c++ Syntax (Toggle Plain Text) 
  1. #include <iostream>
  2. #include <string>
  3. #include <iomanip>
  4.  
  5.  
  6. using namespace std;
  7.  
  8. int main()
  9. {
  10.     //Declare variables
  11.     const double PACKAGE_A_RATE = 9.95;
  12.     const double PACKAGE_B_RATE = 14.95;
  13.     const double PACKAGE_C_RATE = 19.95;
  14.  
  15.     char packageA = ' ';
  16.     char packageB = ' ';
  17.     char packageC = ' ';
  18.     string packageName = "";
  19.     double packageACharge = 0.0;
  20.     double packageBCharge = 0.0;
  21.     double packageCCharge = 0.0;
  22.     double hours = 0.0;
  23.     double totalDue = 0.0;
  24.     string customerName = "";
  25.  
  26.  
  27.     cout << "Enter your name: ";
  28.     cin >> customerName;
  29.  
  30.     cout << "Enter the package you purchased: ";
  31.     cin >> packageName;
  32.  
  33.     cout << "Enter the number of hours used: ";
  34.     cin >> hours;
  35.  
  36.  
  37.  
  38.     if(hours ==10)
  39.     {
  40.              packageACharge = PACKAGE_A_RATE;
  41. 			 cout << packageACharge<<endl;
  42.     }
  43.     else if(hours > 10)
  44.     {
  45.          //this turned out to be cleaner than the last
  46.          packageACharge = ((hours - 10) * 2) + PACKAGE_A_RATE;
  47.  
  48.          cout << packageACharge<<endl;
  49.  
  50.     }
  51.  
  52.     if(hours ==10)
  53.     {
  54.              packageBCharge = PACKAGE_B_RATE;
  55. 			 cout << packageBCharge<<endl;
  56.     }
  57.     else if(hours > 10)
  58.     {
  59.  
  60.          packageBCharge = ((hours - 10) * 2) + PACKAGE_B_RATE;
  61.  
  62.          cout << packageBCharge<<endl;
  63.  
  64.     }
  65.     system("pause");
  66.     return 0;
  67. }
Last edited by dvsConcept; Feb 22nd, 2009 at 1:05 am.
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Re: having problem with an if statement...

 
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  #8
Feb 22nd, 2009
Two questions---
1) if i have a package that is 19.95 per month for unlimited access, how do figure that into the equation?

2) when im ready to output the bill, do i need to output it in every if statement?
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Re: having problem with an if statement...

 
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  #9
Feb 22nd, 2009
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Originally Posted by cassie_sanford View Post
Two questions---
1) if i have a package that is 19.95 per month for unlimited access, how do figure that into the equation?

2) when im ready to output the bill, do i need to output it in every if statement?

package C is the unlimited access price?

and you dont have to output in every if statement ill show you once you answer my question about package C
Last edited by dvsConcept; Feb 22nd, 2009 at 1:13 am.
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Re: having problem with an if statement...

 
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  #10
Feb 22nd, 2009
yes but it cant exceed 744 hours
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