Add Payroll Management

Add interface Payable which defines pay abstract method

Update the Employee classes to implement Payable and remove the method as being abstract in the Employee class

Leave the Employee class as abstract

Standardize Departments

Change Department to use an enumeration with the following values: TECHNOLOGY, SALES, EXECUTIVE

Override the toString$()$ method in the enumeration to return the department in camel case format $($first letter capitalized$)$

Remove all exceptions from Employee as no longer required

New Class of Employees

Add a new class for SalaryPlusCommissionEmployee

It is a subclass of SalaryEmployee.

It includes an instance variable commission percent as a double.

The pay includes commission given as percentage of weekly salary: salary $=$ weekly salary $+($weekly salary $*$ commission percent$)$

Class Requirements:

New class must be SalaryPlusCommissionEmployee in the

unex.hr package

Payable interface must be named Payable in the

unex.hr package

Enumeration must be named Department in the

unex.hr package

Demo class must be named EmployeeDemo in the unex.hw package

Feel free to add any other methods that may be useful

DEmo Requirements:

Add using the new SalaryPlusCommissionEmployee to the demo from last assignment. Update the demo to use the Department enumeration.

Extra Credit:

For an additional $20$ points, create the UML diagrams for the classes used in your program. Generate images or PDF for the diagrams and submit these as an additional zip file. Do not include these in your project export as I may not see them. This should include the classes in the

unex.hr package only.