package com.zf.test;
import java.util.*;
public class Test {
    
    int stuCount = 10;    //学生人数
    int curCount = 5;    //课程总数
    
    int[][] stuScore = new int[stuCount][curCount];    
    
    int [] stuAvgScore = new int[stuCount];
    
    Random random = new Random();
    
    //将学生分数放入二位数组
    public void putScoreToStuScore(){
        for (int i = 0; i < stuScore.length ; i++) {
            int tmp[] = new int[curCount];
            for (int j = 0; j < curCount ; j++) {
                tmp[j] = getRadomScore();
            }
            stuScore[i] = tmp;
        }
    }
    
    //初始化学生平均分数
    public void initAvgScore(){
        for (int i = 0; i < stuScore.length; i++) {
            int tmp[] = stuScore[i];
            int totalScore = 0 ;    //总分数
            for (int j = 0; j < tmp.length; j++) {
                totalScore += tmp[j];
            }
            stuAvgScore[i] = totalScore / tmp.length;    //得到平均分数
        }
    }
    
    //打印平均分数
    public void printAvgScore(){
        for (int i = 0; i < stuAvgScore.length; i++) {
            System.out.println("学生" + (i + 1) +"的平均分为：" + stuAvgScore[i]);
        }
    }
    
    //打印所有学生 所有课程信息
    public void printAllStudentScore(){
        for (int i = 0; i < stuScore.length; i++) {
            System.out.println("学生" + (i+1) + "的课程分数为：" + Arrays.toString(stuScore[i]));  
        }
    }
    
    //得到一个 60 - 100 的随机分数
    public int getRadomScore(){
        return random.nextInt(40) + 60;
    }
    
    public static void main(String[] args) {
        Test t  = new Test();
        t.putScoreToStuScore();        
        t.initAvgScore();
        t.printAllStudentScore();
        System.out.println("\n\n-------------------------------------------");
        t.printAvgScore();
    }

}