package chapter5.section2;

import java.util.ArrayList;
import java.util.List;

class ScoreAverage {
    private List<Double> scoreData = new ArrayList<>();

    double scoreAverage() {
        double sum = 0;
        for (Double score : scoreData) {
            sum += score;
        }
        return sum / scoreData.size();
    }

    boolean add(Double score) {
        return scoreData.add(score);
    }

    int size() {
        return scoreData.size();
    }

}