在排序我的arrayLust时遇到问题

Question

我想基于Comparator＆＃34; c＆＃34;从ArrayList返回前k个ratables。为了 。所以第一个元素是根据比较器c的第一个ratable。

这是我的代码

public static ArrayList<Ratable> getTopK(ArrayList<Ratable> list, int k, Comparator c) {
        ArrayList<Ratable> ratables;

        if (c.toString().contains("AlphabeticalComparator")) {
            ratables = AlphabeticalComparator.compare(list);
        } else if (c.toString().contains("NumberOfRatingsComparator")) {
            ratables = NumberOfRatingsComparator.compare(list);
        } else {
            Scanner in = new Scanner(System.in);
            System.out.println("Enter Extra Reviews and value of extra ratings: ");
            int extraReviews = in.nextInt();
            double extraRatings = in.nextDouble();
            ratables = BayesianAverageComparator.compare(list, extraReviews, extraRatings);
        }

        ArrayList<Ratable> subList = new ArrayList<Ratable>(ratables.subList(0, k));
        return subList;
    }

    }

我的自动编程器告诉我它没有以我需要的方式订购？

Answer 1

您可以使用 <img src="../../../assets/images/Logo.png" /> 。