package com.java.arraysdemo;
import java.util.Scanner;
/*
* 从键盘读入学生成绩，找出最高分，并输出学生成绩等级。
?成绩>=最高分-10 等级为’A’
?成绩>=最高分-20 等级为’B’
?成绩>=最高分-30 等级为’C’
?其余 等级为’D’
* */
public class ArrayDemo1 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("请输入学生的人数：");
        int number = scanner.nextInt();
        int [] array = new int[number];
        System.out.println("请输入"+number+"个人的成绩分别为：");
        for (int i = 0; i < number; i++) {
            array[i] = scanner.nextInt();
        }
        int grade = array[0];
        for (int i = 1; i < number; i++) {
            if(grade<array[i]){
                grade = array[i];
            }
        }
        System.out.println("最高分是："+grade);

        for (int i = 0; i < number; i++) {  //等级划分
            if(array[i]>=grade-10){
                System.out.println("student "+i+" score is "+array[i]+" grade is A");
            }
            else if(array[i]>=grade-20){
                System.out.println("student "+i+" score is "+array[i]+" grade is B");
            }
            else if(array[i]>=grade-30){
                System.out.println("student "+i+" score is "+array[i]+" grade is C");
            }
            else{
                System.out.println("student "+i+" score is "+array[i]+" grade is D");
            }
        }
    }
}