一维数组的练习

从键盘输入的学生成绩，找出最高分， 并输出学生成绩等级

成绩  >=最高分-10   等级 A

成绩  >=最高分-20   等级 B

成绩  >=最高分-30   等级 C

其余                         等级 D

import java.util.Scanner;
public class TestScore {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        System.out.println("输入学生个数");
        int count = s.nextInt();
        int[] scores = new int[count];
        int maxSocre = 0;
        System.out.println("输入成绩");
        for (int i = 0; i < scores.length; i++) {
            int score = s.nextInt();
            scores[i] = score;
            if (scores[i] > maxSocre) {
                maxSocre = scores[i];
            }
        }
        // 遍历学生成绩数组， 根据差值 赋予相应等级 ，并输出
        System.out.println("最高分为：" + maxSocre);
        for (int i = 0; i < scores.length; i++) {
            char level;
            if (scores[i] >= maxSocre - 10) {
                level = 'A';
            } else if (scores[i] >= maxSocre - 20) {
                level = 'B';
            } else if (scores[i] >= maxSocre - 30) {
                level = 'C';
            } else {
                level = 'D';
            }
            System.out.println("student " + i + " score is " + scores[i] + " grade is " + level);
        }
    }
}

运行如下：