2. Consider the course enrollment system. Four classes are used. The student enrollment (methods: getName. GetDate,prepareInvoice,postPayment) ,the course, the account receivable, the enrollment report generator. The account receivable and the enrollment report generator are derived classes from student enrollment class. Please give the class diagram of the system and see if there is any problem in the operation of the classes. If there is provide the appropriate class diagram.

In this section, we discussed base classes and derived classes. Which is the general class and which is the specialized class?

Describe the concept of the "Liskov Substitution Principle" in the context of method overriding. Why is it important, and how does it ensure the proper behavior of derived classes?

I'm curious to know what "association class" means.

The approach to analysis modelling in which we focus on class definitions and class relationships is structured analysis object-oriented analysis top down functional design none of the above

Explain how abstract classes and methods work

Implement the classes according to the given class diagram. It shows both the composition and aggregation relationships. Driver has a Vehicle and Engine is a part of that Vehicle. [Note: consider the necessary data members, constructors, destructors and member functions accordingly] Note: solve as soon as possible use C++ LANGUAGE  Class diagram is given

In what kinds of situations would you find it more beneficial to make use of an abstract class as opposed to a base class?

What is the implementation in python of the setArea methods in all the Concrete classes? What are abstract classes and how do they improve efficiency in development? Please include examples.

The class diagram with four classes Student, Graduate, Undergraduate, and Exchange isgiven. Write the classes as described in the class diagram. The fields and methods for each classis given below.Student:Fields: major (String)gpa (double)creditHours (int)Methods:getGpa: returns gpagetYear: returns a String of “freshman”, “sophomore”, “junior” or “senior” asdetermined by earned credit hours:• Freshman: Less than 32 credit hours• Sophomore: At least 32 credit hours but less than 64 credit hours• Junior: At least credit hours 64 but less than 96 credit hoursStudentExchangeGraduateUndergraduate• Senior: At least 96 credit hoursGraduate:Fields: degree (String) (“Masters” or “PhD”)concentration (String)years (int) (stores no. of years spent in grad school)Methods:getYears: returns years (this is an integer, not like the student…)getConcentration: returns concentration (ex: Data Science, NeuroScience,Bioinformatics, Cybersecurity, etc.)Undergraduate:Fields: honors (Boolean)Methods:isHonors:…