programming $511$ python:

Question $1(25$ marks$)$

$1.$ Explain how the following set operations work: $(7$ marks$)$

a$.$ Union

b$.$ Intersection

c$.$ Difference

$2.$ Discuss the four characteristics of Object$-$Oriented Programming. $(8$ marks$)$

$3.$ Define the following terms: $(10$ marks$)$

a$.$ Database

b$.$ Record

c$.$ Field

d$.$ Primary Key

e$.$ Foreign Key

Question $2(25$ marks$)$

Implement a University Course Management System using Object$-$Oriented Programming

principles in Python. The system should manage courses, students, and professors. Create the

following classes with their respective attributes and methods:

a$.$ Create a Person class with name, age, and ID attributes. Implement an init method to initialise

these attributes and a str method to return a string representation of a Person object.

b$.$ Develop a Student class that inherits from the Person class. In addition to the inherited

attributes, include a major and a list of enrolled$\_$courses. Implement an enrol$($course$)$ method

that adds a course to the student's enrolled$\_$courses if there's capacity in the course. Also,

create a drop$($course$)$ method that removes a course from the student's enrolled$\_$courses.

c$.$ Create a Professor class that inherits from the Person class. Add attributes for the department

and a list of courses$\_$teaching. Implement an assign$\_$course$($course$)$ method that adds a

course to the professor's courses$\_$teaching list and sets the course's professor attribute to this

professor.

d$.$ Design a Course class with attributes for course$\_$code, name, max$\_$capacity, professor, and a

list of enrolled$\_$students. Implement init and str methods, add$\_$student$($student$)$ and

remove$\_$student$($student$)$ methods. The add$\_$student method should add a student to the

course if there's capacity, while the remove$\_$student method should remove a student from

the course.

e$.$ Develop a University class with attributes for names and lists of courses, students, and

professors. Implement methods to add$\_$course$($course$),$ add$\_$student$($student$),$ and

add$\_$professor$($professor$)$ to their respective lists. Also, create a get$\_$course$($course$\_$code$)$

method that returns a course given its course code.

Create a demo script that instantiates the University class and populates it with courses, students,

and professors. Demonstrate the functionality by enrolling students in courses, assigning

professors to courses, dropping students from courses, and printing out the state of courses,

students, and professors after these operations