Question

我有这个任务，我需要使用Java来创建一个for循环来计算每个学生的平均值＆＃39;得分了。教师必须输入每个学生的考试成绩数，然后循环将针对每个学生进行迭代。

import java.util.Scanner;
public class average {

    public static void main(String[] args) {

        int count = 0;
        int student;
        int sum = 0;
        int grade;
        int average = 0;
        Scanner keyboard = new Scanner(System.in);

        System.out.println("Enter the number of students:");
        student = keyboard.nextInt();

        System.out.println("Enter number of test scores per student: ");
        count = keyboard.nextInt();

        for (int s = 0; s < student; s++) {
            System.out.println("Student number " + (s + 1) );

            for (int i = 0; i < count; i++) {
                System.out.println("Enter score no." + (i + 1) + " : ");
                grade = keyboard.nextInt();
                sum += grade; 
                average = sum/count;

            }

            System.out.println("The average is " + average);
        }
    }
}

Answer 1

打印平均值后得到sum = 0

刚刚在下面的循环中显示

for (int s = 0; s < student; s++) {
        System.out.println("Student number " + (s + 1));


        for (int i = 0; i < count; i++) {
            System.out.println("Enter score no." + (i + 1) + " : ");
            grade = keyboard.nextInt();
            sum += grade;
            average = sum / count;

        }

        System.out.println("The average is " + average);

        sum = 0;  //THIS IS REQUIRED
    }

for循环计算学生＆＃39;平均分。我的平均值一直在增加

1 个答案: