JAVA练习：一维数组的课后练习

没事做个经典题

题目如下：

package com.atguigu.exer;

import java.util.Scanner;

public class ArrayDemo3 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入学生人数：");
        int number = scanner.nextInt();
        int[] scores = new int[number];
        int maxscore = 0;
        
        System.out.println("请依次输入他们的成绩：");
        for(int i = 0;i < scores.length;i++){
            scores[i] = scanner.nextInt();
            if(maxscore < scores[i]){
                maxscore = scores[i];
            }
        }
        System.out.println("最高分是：" + maxscore);
        char level;
        for(int i = 0;i < scores.length;i++){
            if(maxscore - scores[i] <= 10){
                level = 'A';
            }else if(maxscore - scores[i] <= 20){
                level = 'B';
            }else if(maxscore - scores[i] <= 30){
                level = 'c';
            }else {
                level = 'D';
            }
            System.out.println("第" + (i+1) + "位学生的成绩是" + scores[i] + ",等级是" + level +".");
        }
        
    }
}