Java - 计算存储在数组中的成绩平均值+打印低于平均值的成绩

Question

这里是初级 Java 程序员。我正在尝试制作一个程序，询问用户他们想进入多少年级。然后，我想将用户输入的成绩存储到数组中。最后，我想找到输入的成绩的平均值，并打印出低于平均值的每个成绩的列表。截至目前，我的代码计算用户输入的成绩的平均值，但我不知道如何打印低于平均值的成绩。我相信问题出在我的最后一个 for 循环中，但我不知道如何解决它。另外，我是否正确实现了数组？感谢每一个花时间帮助我的人!

public static void grades() {
    int q = 0;
    double grades = 0;
    double total = 0;

    Scanner in = new Scanner(System.in);
    // user input how many grades user would like to enter
    System.out.println("How many grades would you like to enter? ");
    q = in.nextInt();

    // user enters # of grades they requested to enter
    for (int counter = 0; counter < q; counter++) { 
        System.out.println("Enter your grades: ");
        grades = in.nextInt();
        // This creates an array that stores the grades the user entered
        double[] scores = new double[] {grades};
        // adds up all elements (grades)
        for (int k = 0; k < scores.length; k++) {
                 total += scores[k]; //sums up entered grades
        }
    }
    total = total / q; //calcs mean
    //loops prints grades less than mean
    for (grades = 0; grades < total; grades++){
        System.out.println(grades);
    }
}

Answer 1

public static void grades(){
    Scanner in = new Scanner(System.in);
    System.out.println("How many grades would you like to enter? "); //user input how many grades user would like to enter
    int q = in.nextInt();

    double[] grades = new double[q];
    double sum = 0;
    for (int counter = 0; counter < q; counter++){ //user enters # of grades they requested to enter
        System.out.println("Enter your grades: ");
        double grade = in.nextInt();
        grades[counter] = grade;
        sum += grade;
    }
    double mean = sum / q;
    System.out.println("Mean: " + mean);
    for (int i = 0; i < q; i++){ //loops prints grades less than mean
        if (grades[i] < mean) {
            System.out.println(grades[i]);
        }
    }
}