the base class, withdraw-money function, and add the capability to deduct transaction fees from an account using the following guidelines.
The checking account is allowed three free transactions. For each successful withdrawal transaction past the three free transactions, there will be a service fee of 50
cents per transaction. The service fee should be deducted from the account balance at the time the transaction is made. If there are insufficient funds in the account balance
to cover the withdrawal plus the service fee, the withdrawal should be denied. The function should return a value to indicate whether the transaction succeeded or failed. Transaction fees should be deducted only from successful transactions, but the transaction count should be incremented in either case.
STEP 3: Create the SavingsingAccount Class Derived From the BankAccount Class The class CheckingAccount should contain, at a minimum, the following members.
It should contain a data member to hold the daily interest rate. The daily interest rate can be calculated from a yearly interest rate by dividing the annual rate by 365.
It should contain a data member to keep track of the number of days since the last transaction or balance inquiry. This should be updated using a random-number
generator( reference Lab 1) that will return a value representing the number of days between 0 and 7, inclusive. We will assume that this bank is open every day of the year.
It should contain a data member to hold the interest earned since the last transaction or balance inquiry. It should contain a function member to set the annual interest rate.
Utilize the base-class functions for both withdrawal and deposit operations for the savings account. Override the base-class-balance inquiry function to add calculating
and adding interest to the account based on the daily interest rate, the current balance of the account, and the number of days since the last balance inquiry.
This should be called only when a balance inquiry is made, not when a deposit or withdrawal transaction or an account number inquiry is made. If there are insufficient funds
in the account balance to cover a withdrawal, the withdrawal should be denied. The number of days since the last transaction or balance inquiry and the interest calculations should still be made. A value should be returned to indicate whether a withdrawal transaction succeeded or failed. It should contain a function member to return the interest