Academy Graduation /Map to double[]/

import java.util.Arrays;
import java.util.Map;
import java.util.Scanner;
import java.util.TreeMap;

public class map_Lab_8Academy_Graduation {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int count = Integer.parseInt(scanner.nextLine());

        Map<String, double[]> academy = new TreeMap<>();

        for (int i = 0; i < count; i++) {
            String name = scanner.nextLine();
            double[] grade = Arrays.stream(scanner.nextLine().split("\\s+"))
                    .mapToDouble(Double::parseDouble).toArray();

            if (!academy.containsKey(name)) {
                academy.put(name, grade);
            }
        }

        for (Map.Entry<String, double[]> entry : academy.entrySet()) {
            System.out.printf("%s is graduated with ", entry.getKey());
            double sum = 0;
            for (double arr : entry.getValue()) {
                sum += arr;
            }
            System.out.println(sum / entry.getValue().length);
        }

    }

}