用idea编写学生成绩管理系统源代码

// 学生成绩管理系统源代码示例
// 1. 学生成绩录入
import java.util.Scanner;

public class ScoreManagementSystem {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int score;
        int count = 0;
        while (true) {
            System.out.println("请输入学生成绩：（输入-1结束）");
            score = input.nextInt();
            if (score == -1) {
                break;
            }
            count++;
        }
        System.out.println("输入了" + count + "名学生的成绩");
    }
}
// 2. 查询学生成绩的平均分、最高分、最低分
import java.util.Scanner;

public class ScoreManagementSystem {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int score;
        int sum = 0;
        int count = 0;
        int max = Integer.MIN_VALUE;
        int min = Integer.MAX_VALUE;
        while (true) {
            System.out.println("请输入学生成绩：（输入-1结束）");
            score = input.nextInt();
            if (score == -1) {
                break;
            }
            sum += score;
            count++;
            if (score > max) {
                max = score;
            }
            if (score < min) {
                min = score;
            }
        }
        System.out.println("平均分：" + (sum / count));
        System.out.println("最高分：" + max);
        System.out.println("最低分：" + min);
    }
}