题解 | #判断学生成绩#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int score = scanner.nextInt();
        try{
            if(score>=0&&score<=100)//正常分数输出
                System.out.println(score);
            else
                throw new ScoreException("分数不合法");//抛出异常
        }
        catch (ScoreException str)
        {
            System.out.println(str.getMessage());//输出异常
        }
    }
}

class ScoreException extends Exception {//继承自异常类的分数异常处理类

    public ScoreException(String message)//构造函数
    {
        super(message);//输出异常函数
    }
}