Debugging Java Code

An assignment that I have tried to complete and am having difficult successfully completing. I attached the assignment requirements and the code I have in attempts to do the assignment. It can be altered and changed as much as long as it fully works and meets the requirements. Word doc and Students.txt are files regarding the assignment. Scheduler.java, activecourse.java, course.java, creditcourse.java, registry.java, scheudler.java, student.java, studentregistrysimulator.java are all parts of the code that need to work together.