Enrollment:

This is an interface that provides an abstract method to be changed to the liking or situation of the user in the classes that the implement the interface. In this case, the Hogwarts class implements Enrollment and states that the enrollment for Hogwarts is free. For more information about the method in this class, refer to the comments made in my code.

Code

public interface Enrollment

{

public abstract void enrollForClass();//creates an abstract method called enrollForClass that enrolls a student in a class

}//this interface is for enrolling in something