Java を使用して簡単な学生テストの得点予測システムを実装するにはどうすればよいですか?

public class Student {
    private String name;
    private int score;

    public Student(String name, int score) {
        this.name = name;
        this.score = score;
    }

    public String getName() {
        return name;
    }

    public int getScore() {
        return score;
    }
}

public class ScorePredictionSystem {
    private List<Student> students;

    public ScorePredictionSystem() {
        students = new ArrayList<>();
    }

    public void addStudent(Student student) {
        students.add(student);
    }

    public double calculateAverageScore() {
        int sum = 0;
        for (Student student : students) {
            sum += student.getScore();
        }
        return (double)sum / students.size();
    }
}

public double predictNextScore() {
    double averageScore = calculateAverageScore();
    return averageScore;
}

public class Main {
    public static void main(String[] args) {
        ScorePredictionSystem system = new ScorePredictionSystem();

        // 添加学生的历史考试成绩数据
        system.addStudent(new Student("张三", 80));
        system.addStudent(new Student("李四", 90));
        system.addStudent(new Student("王五", 70));

        // 预测下一次考试成绩
        double nextScore = system.predictNextScore();
        System.out.println("预测的下一次考试成绩为：" + nextScore);
    }
}