COP 2337C Lab 3 Solution

COP 2337C Lab 3 Solution

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.
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