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// Fig. 6.10: salesp.cpp
// Member functions for class SalesPerson.
#include <iostream>
using std::cout;
using std::cin;
using std::endl;
using std::fixed;
#include <iomanip>
using std::setprecision;
// include SalesPerson class definition from salesp.h
#include "salesp.h"
// initialize elements of array sales to 0.0
SalesPerson::SalesPerson()
{
for ( int i = 0; i < 12; i++ )
sales[ i ] = 0.0;
} // end SalesPerson constructor
// get 12 sales figures from the user at the keyboard
void SalesPerson::getSalesFromUser()
{
double salesFigure;
for ( int i = 1; i <= 12; i++ ) {
cout << "Enter sales amount for month " << i << ": ";
cin >> salesFigure;
setSales( i, salesFigure );
} // end for
} // end function getSalesFromUser
// set one of the 12 monthly sales figures; function subtracts
// one from month value for proper subscript in sales array
void SalesPerson::setSales( int month, double amount )
{
// test for valid month and amount values
if ( month >= 1 && month <= 12 && amount > 0 )
sales[ month - 1 ] = amount; // adjust for subscripts 0-11
else // invalid month or amount value
cout << "Invalid month or sales figure" << endl;
} // end function setSales
// print total annual sales (with the help of utility function)
void SalesPerson::printAnnualSales()
{
cout << setprecision( 2 ) << fixed
<< "\nThe total annual sales are: $"
<< totalAnnualSales() << endl; // call utility function
} // end function printAnnualSales
// private utility function to total annual sales
double SalesPerson::totalAnnualSales()
{
double total = 0.0; // initialize total
for ( int i = 0; i < 12; i++ ) // summarize sales results
total += sales[ i ];
return total;
} // end function totalAnnualSales
/**************************************************************************
* (C) Copyright 1992-2002 by Deitel & Associates, Inc. and Prentice *
* Hall. All Rights Reserved. *
* *
* DISCLAIMER: The authors and publisher of this book have used their *
* best efforts in preparing the book. These efforts include the *
* development, research, and testing of the theories and programs *
* to determine their effectiveness. The authors and publisher make *
* no warranty of any kind, expressed or implied, with regard to these *
* programs or to the documentation contained in these books. The authors *
* and publisher shall not be liable in any event for incidental or *
* consequential damages in connection with, or arising out of, the *
* furnishing, performance, or use of these programs. *
*************************************************************************/
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