I have been working on this code all week and can not figure out why its saying that my identifiers are undefined.... Please Help!
class Invoice
{
public:
// constructor initializes the four data members
Invoice( string, string, int, int );
// set and get functions for the four data members
void setPartNumber( string ); // part number
string getPartNumber();
void setPartDescription( string ); // part description
string getPartDescription();
void setQuantity( int ); // quantity
int getQuantity();
void setPricePerItem( int ); // price per item
int getPricePerItem();
// calculates invoice amount by multiplying quantity x price per item
int getInvoiceAmount();
private:
string partNumber; // the number of the part being sold
string partDescription; // description of the part being sold
int quantity; // how many of the items are being sold
int pricePerItem; // price per item
}; // end class Invoice
#include <iostream>
#include "Invoice.h"
using namespace std;
// Invoice constructor initializes the class's four data members
Invoice::Invoice( string number, string description, int count, int price )
{
setPartNumber( number ); // store partNumber
setPartDescription( description ); // store partDescription
setQuantity( count ); // validate and store quantity
setPricePerItem( price ); // validate and store pricePerItem
} // end Invoice constructor
// set part number
void Invoice::setPartNumber( string number )
{
PartNumber = number; // no validation needed
} // end function setPartNumber
// get part number
string Invoice::getPartNumber()
{
return PartNumber;
} // end function getPartNumber
// set part description
void Invoice::setPartDescription( string description )
{
PartDescription = description; // no validation needed
} // end function setPartDescription
// get part description
string Invoice::getPartDescription()
{
return PartDescription;
} // end function getPartDescription
// set quantity; if not positive, set to 0
void Invoice::setQuantity( int count )
{
quantity = ( count < 0 ) ? 0 : count;
} // end function setQuantity
// get quantity
int Invoice::getQuantity()
{
return quantity;
} // end function getQuantity
// set price per item; if not positive, set to 0
void Invoice::setPricePerItem( int price )
{
pricePerItem = ( price < 0.0 ) ? 0.0 : price;
} // end function setPricePerItem
// get price per item
int Invoice::getPricePerItem()
{
return pricePerItem;
} // end function getPricePerItem
// calulates invoice amount by multiplying quantity x price per item
int Invoice::getInvoiceAmount()
{
return getQuantity() * getPricePerItem();
} // end function getInvoiceAmount
#include <iostream>
#include "Invoice.h"
using namespace std;
// function main begins program execution
int main()
{
// create an Invoice object
Invoice invoice( "12345", "Hammer", 100, 5 );
// display the invoice data members and calculate the amount
cout << "Part number: " << invoice.getPartNumber() << endl;
cout << "Part description: " << invoice.getPartDescription() << endl;
cout << "Quantity: " << invoice.getQuantity() << endl;
cout << "Price per item: $" << invoice.getPricePerItem() << endl;
cout << "Invoice amount: $" << invoice.getInvoiceAmount() << endl;
// modify the invoice data members
invoice.setPartNumber( "123456" );
invoice.setPartDescription( "Saw" );
invoice.setQuantity( -5 ); // negative quantity, so quantity set to 0
invoice.setPricePerItem( 10 );
cout << "\nInvoice data members modified.\n\n";
// display the modified invoice data members and calculate new amount
cout << "Part number: " << invoice.getPartNumber() << endl;
cout << "Part description: " << invoice.getPartDescription() << endl;
cout << "Quantity: " << invoice.getQuantity() << endl;
cout << "Price per item: $" << invoice.getPricePerItem() << endl;
cout << "Invoice amount: $" << invoice.getInvoiceAmount() << endl;
} // end main