分析成绩 Exercise07

分析成绩 Exercise07_04

 1 import java.util.Scanner;
 2 /**
 3  * @author 冰樱梦
 4  * 时间：2018年下半年
 5  * 题目：分析成绩
 6  *
 7  */
 8 public class Exercise07_04 {
 9     public static void main(String[] args){
10         int higher=0,equal=0,lower=0,sum=0;
11         double average,total=0,num;
12         double[] grade=new double[101];
13         Scanner input=new Scanner(System.in);
14         System.out.println("输入考试分数，以负数结束");
15         while(true){
16             num=input.nextInt();
17             if(num<0) break;
18             sum++;
19             grade[(int) num]=num;
20         }
21         for(int i=0;i<grade.length;i++){
22             total+=grade[i];
23         }
24         average=total/sum;
25         for(int i=0;i<101;i++){
26             if((grade[i]!=0) && (grade[i]<average)) lower++;
27             if(grade[i]==average) equal++;
28             if(grade[i]>average) higher++;
29         }
30         System.out.println("There are "+ higher+" higher than average grade,"+lower+" lower than average grade,and "+equal+" equal average grade");
31     }
32 }