请帮忙；我很困惑。我需要为我正在学习的课程制作一个多维数组，但它运行得不太好。这些是方向：这些是方向
数组应该是什么样子的示例
这是我目前掌握的代码：

import java.util.Scanner;
public class Hw {
    public static void main(String args[]) {
    Scanner in = new Scanner(System.in);
    int numOfStudents;
    int assignments;
    int amtOfScores;
    int valueOfScores;
    System.out.println("Enter the number of students in the class: ");
    numOfStudents =  in.nextInt();
    System.out.println("Enter the number of assignments: ");
    assignments = in.nextInt();
    System.out.println("Enter the values of all of the exam scores:");
    valueOfScores = in.nextInt();
    amtOfScores = numOfStudents* assignments;
    }
}}