Question

java编程 保存十个同学的三门功课成绩使用二维数组

java编程 保存十个同学的三门功课成绩使用二维数组

Answer 1

import java.util.Scanner;

public class Demo {
public static void main(String[] args) {
int[][] a = new int[10][3];
String str[] = { "A", "B", "C" };
Scanner scan = new Scanner(System.in);
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 3; j++) {
System.out.print("输入第" + (1 + i) + "位同学的" + str[j] + "的分数：");
a[i][j] = scan.nextInt();
}
}
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 3; j++) {
System.out.println("第" + (1 + i) + "位同学的" + str[j] + "的分数为："+a[i][j]);

}
}
}

}

Answer 2

Scanner scanner = new Scanner(System.in);
//学生数
int m = 10;
//课程数
int n = 3;
System.out.println("输入成绩:");
//存放学生 成绩的二维数组
int[][] arr = new int[m][n];
for (int i = 0; i < m; i++) {
for (int j = 0; j < n; j++) {
int in = scanner.nextInt();
arr[i][j] = in;
}
}