题解 | #班级成绩输入输出#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double [][]scores = new double [5][5];
        for (int i = 0;i<5;i++){
            for (int j = 0;j<5;j++){
                scores[i][j] = sc.nextDouble();
            }
        }

        for (int i = 0;i<5;i++){
            double sum = 0.0;
            for (int j = 0;j<5;j++){
                sum += scores[i][j];
                System.out.printf("%.1f ",scores[i][j]);
            }
            System.out.printf("%.1f",sum);
            System.out.println();
        }
    }
}