public interface StudentI {

    /**
     * Get the student id.
     */
    public int getId();

    /**
     * Get the student name.
     */
    public String getName();

    /**
     * Get the total hours the student has
     * registered for. Initially, this is
     * zero, but as courses are signed up
     * it grows.
     */
    public int getTotalRegisteredHours();
}