How do I find the total sale for my program??

[samsons17]

Hi..
This is my program for my assignment..
So far,I've succeeded in coding the program but not for the last part..
I still need to find the total sale for this program...
and the result at the end suppose to be more or less like this :

Total sale : $25.00
Payment : $50.00
Balance : $25.00

I've tried so hard,but still i cant find the right way to do it..
So i hope you all could me....
Thank You..:)

#include <iostream>
#include <iomanip>
using namespace std;

int main () {

class record{
public :
   string id;
   string name;
   double price;
   double quantity;
   double sale;
   };

  record product[100];


      int i=0;
      char answer;

      cout<<"--------------------------------------------------------------------------------";
      cout<<"\t\t\t\tCASH RECEIPT PROGRAM"<<endl;
      cout<<"--------------------------------------------------------------------------------";
      cout<<endl;

      do{

      cout << "Enter the Product ID : ";
      cin >> product[i].id;


      cout << "Enter the Product Name : ";
      cin >> product[i].name;


      cout << "Enter the Price For Single Item : ";
      cin >> product[i].price;

      cout << "Enter The Quantity : ";
      cin >> product[i].quantity;

      cout<<endl;

      cout << "Would You like to enter another product? (Y/N) ";
      cin >> answer;


      i++;

      cout<<endl;

      }while(answer == 'y' || answer == 'Y' && answer !='N'&&'n');



if (answer == 'N' || 'n'){

int index;

cout<<"--------------------------------------------------------------------------------";
cout<<"ID |"<<setw(13)<<"ITEM |"<<setw(12)<<"PRICE |"<<setw(10)<<"QTY |"<<setw(10)<<"SALE"<<endl;
cout<<"--------------------------------------------------------------------------------";


 for(index=0; index<i; index++){

product[index].sale=(product[index].price)*(product[index].quantity);

// Display all the info about that product
cout <<product[index].id<<setw(10)<<product[index].name<<setw(10)<<"$"<<product[index].price<<setw(10)
<<product[index].quantity<<setw(10)<<product[index].sale;

cout<<endl;


}

}

cin.get();

}

[Clinton Portis]

you could probably do something like this:

int total = 0;

for(int counter=0; counter < i; counter++)
{
     total += product[counter].price;
}

cout << "Total goods sold is:  " << total;

Good looking well coded program btw. The only critique I have is that I would probably use a struct over a class, mainly because struct access is automatically made 'public' whereas with classes you have to use an extra line of code to change access to public.

Also, one mistake here:

}while(answer == 'y' || answer == 'Y' && answer !='N'&&'n');

//should be
}while((answer == 'y' || answer == 'Y') && (answer != 'N' || answer !='n'));

Although if you test for Y, you know your only other option would be N, so why even test for N...

Also, line #57 does not need to exist, because if you fall through the do/while loop, you can assume that the user no longer wants to input data and you can just continue with the rest of the program.

[jonsca]

Explain your confusion a little more. Wouldn't you just add up all of the product[index].sale values then prompt the user for a payment amount?

[samsons17]

Thank you..now my problem is solved.....

you could probably do something like this:

int total = 0;

for(int counter=0; counter < i; counter++)
{
     total += product[counter].price;
}

cout << "total goods sold is:  " << total;

good looking well coded program btw. The only critique i have is that i would probably use a struct over a class, mainly because struct access is automatically made 'public' whereas with classes you have to use an extra line of code to change access to public.

Also, one mistake here:

}while(answer == 'y' || answer == 'y' && answer !='n'&&'n');

//should be
}while((answer == 'y' || answer == 'y') && (answer != 'n' || answer !='n'));

although if you test for y, you know your only other option would be n, so why even test for n...

Also, line #57 does not need to exist, because if you fall through the do/while loop, you can assume that the user no longer wants to input data and you can just continue with the rest of the program.