import java.util.ArrayList;

public class Course {
    private ArrayList<Student> students = new ArrayList<Student>();
    private String courseName;
    public Course(String name){
        courseName = name;
    }
    public void addStudent(Student fish){
        students.add(fish);
    }
    public float averageAll(){
//        System.out.println(students.listIterator());
//        students.listIterator();
//        float tester = 4.5f;
//        return tester;
        float sum = 0;

        for(Student s : students) {
            sum += s.average();
        }

        return sum / students.size();
    }

    public void roll(){
        for(Student s : students){
            System.out.println(s.getFirstName() + " " + s.getLastName());
        }

    }
    @Override
    public String toString() {
        return "Course{" +
                "course=" + students +
                ", courseName='" + courseName + '\'' +
                '}';
    }
}