卡码java基础课 | 5. A+B问题VIII

例题：


解：

点击查看代码

import java.util.Scanner;

public class Main{
    public static void main (String[] args) {
        Scanner sc = new Scanner(System.in);
        
        while(sc.hasNext()){
            int n = sc.nextInt();
            for(int i = 0; i < n; i++){
                int n2 = sc.nextInt();
                int sum = 0;
                for(int i2 = 0; i2 < n2; i2++){
                    sum += sc.nextInt();
                }
                System.out.println(sum);
                if(i != (n-1)){
                    System.out.println();
                }
            }
        }
        
        sc.close();
    }
}