problem.txt

zyDE 11.5.1: Employees example: Abstract class and interface.

The classes below describe an abstract class named EmployeePerson
and two derived concrete classes, EmployeeManager and EmployeeStaff,
both of which extend the EmployeePerson class. The main program
creates objects of type EmployeeManager and EmployeeStaff and
prints them.

Run the program. The program prints manager and staff data using
the EmployeeManager's and EmployeeStaff's printInfo methods. Those
classes override EmployeePerson's getAnnualBonus() method but simply
return 0. Modify the EmployeeManager and EmployeeStaff getAnnualBonus
methods to return the correct bonus rather than just returning 0.
A manager's bonus is 10% of the annual salary and a staff's bonus
is 7.5% of the annual salary.