Thread: Help with inheriting classes

So there are 2 parts to this and I've figured out the first part but the second part was a little confusing.
Part1: Create a class called Person that has two subclasses Student and Employee. Make Faculty and Staff subclasses of Employee. A person has name and address. A student has GPA as a real number between 0.00 and 4.00. An employee has an office address and a salary. A faculty member has a rank. A staff member has a title. Create a toString method in each class that returns a description of the person, including the class name, the person's name and the values of all the other attributes of the object.

Create a test class that includes an array of persons containing at least one person from each of the subclasses. Then print out all objects in a loop.

Part2: Now, add an abstract class Role that has no members. There are two subclasses of Role called EmployeeRole and StudentRole. Use the bodies of Employee and Student for those, as these classes are no longer needed. The Person class will have a list of roles, and a method addRole(Role r). Make FacultyRole and StaffRole subclasses of EmployeeRole as before. Add an abstract getPay method to EmployeeRole, and getPay() methods to StaffRole and FacultyRole. Make sure you have toString methods in FacultyRole and StaffRole, and that they are appropriately changed.

Change the tester to conform to the new requirements. You still need an array of persons, but you will need to add roles to each person. In addition to what you did in the previous homework, you should have at least one person who is both student and staff.

I can't quite figure out what addRole is supposed to do and how you even implement the Person class now that you have no subclasses extending it. Any help figuring out how I would implement multiple roles into the same person would be appreciated.

Originally Posted by Harlow777

I can't quite figure out what addRole is supposed to do and how you even implement the Person class now that you have no subclasses extending it. Any help figuring out how I would implement multiple roles into the same person would be appreciated.

The method addRole(Role r) is to add a role to the role list of a person. Each person has a list of roles.

I really need to see how addRole is going to be constructed. I'm a little lost on how to implement it. I know you will need the list of roles and the method in person but I don't know if I need an actual list or not, and I don't know how you would make the program add the correct roles in the Test class or even how you would construct a person object with more than one role. I have a constructor in each class that specifies the parameters of a person of that class, it is a little restrictive but I don't know of any other way to do it, and this doesn't allow me to specify all the parameters needed for someone of class Student and Staff.