10302助教作業01

package asd;
import java.util.Scanner;


public class asd {

    public static void main(String[] args) {
    Scanner scn = new Scanner(System.in);
    int[][] student = new  int[3][];
    student[0] = new int[5];
    student[1] = new int[8];
    student[2] = new int[4];

    System.out.print("輸入A班每個人的成績:");
    float a_avg=0;
    for(int i=0;i<5;i++)
    {
        student[0][i] = scn.nextInt();
        a_avg += student[0][i];

    }

    System.out.print("輸入B班每個人的成績:");
    float b_avg=0;

    for(int i=0;i<8;i++)
    {
        student[1][i] = scn.nextInt();
        b_avg += student[1][i];

    }
    System.out.print("輸入C班每個人的成績:");
    float c_avg=0;
    for(int i=0;i<4;i++)
    {
        student[2][i] = scn.nextInt();
        c_avg += student[2][i];

    }

    System.out.println("A班平均成績:"+a_avg/5);
    System.out.println("B班平均成績:"+b_avg/8);
    System.out.println("C班平均成績:"+c_avg/4);

    }

}