BankAccount Inheritance a) From the attached abstract BankAccount class, derive a class called Savings. The class should contain: • (1) A private data member called interestRate of type double. • (1) A default constructor. • (1) A public setter method, named SetInterestRate(), that makes it possible to assign an interest rate to the private data member interestRate of the class. • (1) A public getter method, named GetInterestRate(), that is used to get the value of the private data member interestRate. • (2) Override the method MonthlyFees(). This method should return a monthly fee of $5.00. • (2) Override the DisplayFees() method from the super class to display the following info: account number, interest rate, and monthly fees. Note: Make calls to the super class methods whenever possible. b) From the attached abstract BankAccount class, derive a class called Checking. The class should contain: • (1) A private data member called numChecksWritten of type integer. • (1) A default constructor. • (1) A public method void WriteCheck() that adds one to the number of checks written. • (2) A public method void NewMonth() that resets the number of checks written to zero. • (2) Override the method MonthlyFees(). This method should return a monthly fee of $10.00 plus a fee of $.10 for every check written. • (2) Override the DisplayFees() method from the super class to display the following info: account number, number of checks written, and monthly fees. Note: Make calls to the super class methods whenever possible. c) (4 pts) Create a UML diagram to represent the BankAccount Hierarchy. d) (4 pts) Create a driver class called BankAccountMain to fully test your classes.
