dentalpayment.cpp

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// Exercise 5.12: DentalPayment.cpp
// This application calculates the total cost of the bill for a
// patient at a dental office.
#include <iostream> // required to perform C++ stream I/O
#include <iomanip>  // required for parameterized stream manipulators
#include <string>   // required to access string functions

using namespace std; // for accessing C++ Standard Library members

// function main begins program execution
int main()
{
   // define variables
   string patient; // patient name
   char cleaning = 'n';  // 'y' if cleaning was performed
   char filling = 'n';   // 'y' if filling was performed 
   char xRay = 'n';      // 'y' if x-ray was performed   

   // prompt user for and input patient name
   cout << "\nEnter patient name: ";
   getline( cin, patient );
   
   // display error message if no name is entered
   if ( patient.size() == 0 )
   {
      // display error message
      cout << "\nError: You must enter a name\n" << endl;     
   } // end if
   else // otherwise, do calculations
   {
      // prompt user for services performed
      cout << "Was cleaning performed (y = yes, n = no)? ";
      cin >> cleaning; // place user response in char cleaning

      cout << "Was cavity filling performed (y = yes, n = no)? ";
      cin >> filling; // place user response in char filling

      cout << "Was an x-ray performed (y = yes, n = no)? ";
      cin >> xRay; // place user response in char xRay

      // display error message if no services are selected
      if ( ( cleaning != 'y' ) && ( filling != 'y' ) &&
         ( xRay != 'y' ) )
      {
         // display error message
         cout << "\nError: Select at least one service\n" << endl;      
      } // end if
      else // otherwise, do calculation
      {
         double total = 0.0; // sum of all services performed

         // if patient had a cleaning
         if ( cleaning == 'y' )
         {
            total += 35; // add 35 to total
         } // end if
         
         // if patient had cavity filled
         if ( filling == 'y' )
         {
            total += 150; // add 150 to total
         } // end if
         
         // if patient had x-ray taken
         if ( xRay == 'y' )
         {
            total += 85; // add 85 to total
         } // end if
      
         // specify output format
         cout << fixed << setprecision( 2 );

         // display total bill 
         cout << "\nTotal: $" << total << endl << endl;
      } // end inner else
   
   } // end outer else

   return 0; // indicate that program ended successfully

} // end function main


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