Q1. Write a Java program that consists of at least three classes for Students, Employees and Courses registration in University. The program should be fully documented, and the following concepts should be applied:

1. Defining a constructor with and without arguments. (3 Marks)

2. Use the setter, getter and toString methods. (3 Marks)

3. Sending an object/s to a method and returning it as a return value. (3 Marks)

4. Defining array of objects and using loop/s and Scanner object/s for data entry. (3 Marks)

5. Defining the main method that integrates the whole project. (3 Marks)