Java How To Program (Early Objects)(10th Edition) Chapter 10

Exercise 10.16(Accounts Payable System Modification) It's possible to include the functionality of the pay- roll application (Figs. 10.4-10.9) in the accounts payable application without modifying Employee subclasses SalariedEmployee , HourlyEmployee , CommissionEmployee or BasePlusCommission- Employee. To do so, you can modify class Employee (Fig. 10.4) to implement interface Payable and declare method getPaymentAmount to invoke method earnings . Method getPaymentAmount would then be inherited by the subclasses in the Employee hierarchy. When getPaymentAmount is called for a particular subclass object, it polymorphically invokes the appropriate earnings method for that subclass. Reimplement Exercise 10.15 using the original Employee hierarchy from the payroll application of Figs. 10.4-10.9. Modify class Employee as described in this exercise, and do not modify any of class Employee 's subclasses.

I've made several attempts to insert all of the images of the mentioned figures that you need in order to provide a solution for my question, all taken with my Android phone, but unfortunately the system wont let me insert them all, I sincerely appologize for the inconvenience. So heres a link to a PDF version of Java How To Program (Early Objects)(10th Edition), which has chapter 10 which has the figures you need for this question. You'll have to have to copy and paste into the search bar. It's all I have since I can't attach all of the images of the required figures and I really hope the link will help provide a solution I so badly need.

https://doc.lagout.org/programmation/Java/Java_%20How%20to%20Program_%20Early%20Objects%20%2810th%20ed.%29%20%5BDeitel%20%26%20Deitel%202014-03-06%5D.pdf

IIMPORTANT NOTE!!: Please add detailed, but brief comments to most, if not all of the code to explain what is being used in the code and what is does so I have a better understanding of the code. Also I've tried previously already posted answers to this question but they had errors and I couldn't figure out why. Again, I badly need help with this, thank you.