public void GoOutCourse(ICourseVisiter courseVisiter) { courseVisiter.RemoveFromCourses(this); }
public void GoToCourse(ICourseVisiter courseVisiter) { courseVisiter.AddToCourse(this); }
public void GoOutCourse(ICourseVisiter courseVisiter) { courseVisiter.RemoveFromCourses(this); }
public void GoToCourse(ICourseVisiter courseVisiter) { courseVisiter.AddToCourse(this); }