Modify the CreditCard class from Code Fragment 1.2 to charge interest on each payment.

Data from in Fragment 1.2

A typical C++ program includes many different header files, which often include other header files. As a result, the same header file may be expanded many times. Such repeated header expansion is wasteful and can result in compilation errors because of repeated definitions. To avoid this repeated expansion, most header files use a combination of preprocessor commands. Let us explain the process, illustrated in Code Fragment 1.2.

#include "Credit Card.h" using namespace std; Credit Card::Credit Card (const string& no, const string& nm, int lim, double bal) { number = no; } name = nm; balance = bal; limit = lim; // provides Credit Card // make std:: accessible // standard constructor bool Credit Card::chargelt (double price) { if (price + balance > double(limit)) return false; balance + price; return true; // make a charge // over limit // the charge goes through } void Credit Card::make Payment (double payment) { // make a payment balance payment; } // print card information ostream& operator