2. Define a class called CreditCardAccount that will track a credit card account

Question

2. Define a class called CreditCardAccount that will track a credit card account activity for a customer.

   The class should have member variables to track the balance, interest charged, and the annual percentage rate

   (APR). Add member functions to handle transaction activities like the following:

   View principle balance and interest; Add purchase amount to balance; Subtract payment amount from

   balance; Change APR and update interest and balance. Write menu-driven testing code in the main().

Note: You must recalculate the balance whenever there is a new purchase, new payment and new APR

change (APR change will change the amount of interest). The balance reflects the amount of payment in

the next billing cycle (1 month).

   I have attached a running page for your reference. The default APR is 12% and at the end of the testing,

   the APR is set to 24%. Use the same testing data when you run your program.

Credit Card Transaction

        1. View Balance

        2. Purchase

        3. Make Payment

        4. Change APR

        5. Exit

CURRENT BALANCE: $0.00

INTEREST CHARGE: $0.00

Credit Transaction

        1. View Balance

        2. Purchase

        3. Make Payment

        4. Change APR

        5. Exit

Explanation / Answer

#include<iostream>

using namespace std;

class CreditCardAccount{
   double balance;
   double interest;
   double annualPercentage;
   public:
       double getBalance(){
           return balance;
       }
       double getInterest(){
           return interest;
       }
       double addPurchase(double amount){
           balance += amount;
           interest = annualPercentage/100 * balance;
       }
       double payment(double amount){
           balance -= amount;
       }
       void changeAPR(double apr){
           annualPercentage = apr;
           interest = annualPercentage/100 * balance;
       }
      
      
};

int main(){
   int choice;
   CreditCardAccount c;
   while(1){
       cout<<"Credit card Transaction:"<<endl;
       cout<<"1. View Balance"<<endl;
       cout<<"2. Purchase"<<endl;
       cout<<"3. Make Payment"<<endl;
       cout<<"4. Change APR"<<endl;
       cout<<"5. Exit"<<endl;
       cin>>choice;
       if(choice == 5)
           break;
       switch(choice){
           case 1:
               cout<<c.getBalance();
               break;
           case 2:
               double purchaseAmount;
               cin>>purchaseAmount;
               c.addPurchase(purchaseAmount);
               break;
           case 3:
               double makePayment;
               cin>>makePayment;
               c.payment(makePayment);
               break;
           case 4:
               double apr;
               cin>>apr;
               c.changeAPR(apr);
               break;
           }
              
       }
   }
  
  
  
   return 0;
}

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