Requirements in summary:
1) develop a Java GUI application – when the program starts, it reads course and student information from a given text file, course.txt, and shows their contents in the ComboBox and JList (40 points),
2) add a new student to a course(20 points),
3) delete one or more selected students from a course (20 points),
4) add a new course (10 points) and,
5) delete a course and all its students (10 points).