程序代码：

import java.util.*; 
public class Main { 

 
    public static void main(String[] args) { 
        int n,k; 
        Scanner scan = new Scanner(System.in); 
        while(scan.hasNext()){ 
        n = scan.nextInt(); 
        k = scan.nextInt(); 
        int[][] temp = new int[n][k]; 
        int[] sum = new int[n]; 
        for(int i = 0; i < temp.length; i++){ 
            for (int j = 0; j < temp[0].length; j++){ 
                temp[i][j] = scan.nextInt(); 
                sum[i] += temp[i][j]; 
            } 
        } 
        int [] average = new int[k]; 
        for (int i = 0; i < temp[0].length; i++){ 
            for (int j = 0; j < temp.length; j++ ) 
                average[i] += temp[j][i]; 
        } 
        for (int i = 0; i < sum.length; i++) 
            System.out.print(sum[i] + " "); 
        System.out.println(); 
        double a; 
        for (int i = 0; i < average.length; i++){ 
            a = average[i]/(double)n; 
            if(a * 10 % 10 < 5) 
            System.out.print((int)a + " "); 
            else 
                System.out.print((int)(a +1) + " "); 
        } 
        System.out.println(); 
        System.out.println(); 
        } 
    } 

 
} 

程序代码：

import java.math.*;

class nn{
    
    public static void n1(String a[]){
        int s1=a[0].split(",").length;
        int ret1[]=new int[a.length];
        int ret2[]=new int[s1];
        for(int s=0;s<a.length;s++){
            String b1[]= a[s].split(",");
            for(int ss=0;ss<s1;ss++){
                ret1[s]+=Integer.parseInt(b1[ss]);
                ret2[ss]+=Integer.parseInt(b1[ss])/a.length;
            }
        } 
        pr(ret1);
        pr(ret2);
    }


    public static void pr(int a[]){
        String s$="";
        for(int i=0;i<a.length;i++){
            s$+=a[i]+" ";
        }
        
        System.out.println(s$);
    }
}

public class aa{
    public static void main(String args[]){
        String a[]={"100,100","90,90","80,80"};    
        String b[]={"90,90,90","60,60,60"};
        nn.n1(a);
        nn.n1(b);
    }

} 

程序代码：

import java.math.*;
import java.util.*; 

class nn{
    
    public static void n1(String a[]){
        int s1=a[0].split(",").length;
        int ret1[]=new int[a.length];
        int ret2[]=new int[s1];
        for(int s=0;s<a.length;s++){
            String b1[]= a[s].split(",");
            for(int ss=0;ss<s1;ss++){
                ret1[s]+=Integer.parseInt(b1[ss]);
                ret2[ss]+=Integer.parseInt(b1[ss])/a.length;
            }
        } 
        pr(ret1,"个人总分");
        pr(ret2,"科目平均分");
    }


    public static void pr(int a[],String f){
        String s$="";
        for(int i=0;i<a.length;i++){
            s$+=a[i]+" ";
        }
        
        System.out.println(f + s$);
    }
}

public class aa{

    public static void main(String args[]){
            Scanner scan = new Scanner(System.in);     
        System.out.println("请输入人数");
        String ar[]=new String[scan.nextInt()];
        System.out.println("请输入各科成绩，用\",\"号用割");
               for(int i=0;i<ar.length;i++){
            ar[i]= scan.next();  
        }
        nn.n1(ar);
    }

}