package sec02;

import java.util.ArrayList; import java.util.Scanner;

public class ArrayListDemo { public static void main(String[] args) { Scanner in = new Scanner(System.in); ArrayList scores = new ArrayList<>(); int data; int sum = 0;

    while ((data = in.nextInt()) >= 0)
        scores.add(data);

    for (int i = 0; i < scores.size(); i++)
        sum += scores.get(i);

    System.out.println("평균 = " + sum / scores.size());
    in.close();
}

}

//여기에 100, 90, 50, 95, 85, -1을 넣고 돌려서 평균구하고 싶은데 어디에 어떻게 넣으면 되나요?