(Solved) : Coursework Project Bunch Java Files Need Help Understanding Questions 1 Polymorphism Used Q32457198 . . . .

I have a coursework project with bunch of java files and i needsome help in understanding some of the questions there:

1. Polymorphism is used in more than one place in theproject

A. Identify all polymorphism cases by identifying their classesand the methods.

B. Take one case and explain the need for polymorphism.

How to identify polymorphism cases in java files and whichmethods?

2 – The class *Something* extends Observable, Runnable.

A. Explain what is Observable, Runnable.

B. Why they are used (general functions)?

3 – The Class Car contains Final Static attributes. Explain whyyou would ever use attributes that are defined as FinalStatic.  

Woul appreciate hep with any