获取学生的学号，姓名，姓名，平均分，最高分最低分

请有JAVA知识的人帮帮忙，Person 类已写好，其他的不确定应该怎么写

这个简单根据题目提示编写即可，主要是要学会体会Java的面向对象的思想，可以多敲代码多练习下。

代码如下：

参考链接：

https://blog.csdn.net/qq_42530693/article/details/120964888

Person.java：

package experiment;

public class Person {

    public String name;// 姓名
    public char sex; // 性别
    public int age;  // 年龄
    
    public Person() {  // 无参的构造方法
        
    }
    
    public Person(String s) {  // 一个String参数的构造方法
        this.name=s;
    }

    
    // 各成员变量的get和set方法
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public char getSex() {
        return sex;
    }

    public void setSex(char sex) {
        this.sex = sex;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Override
    // toString方法，用于打印Person类对象的信息
    public String toString() {
        return "Person [姓名：" + name + ", 性别：" + sex + ", 年龄：" + age + "]";
    }
    
}

Student.java：

package experiment;

public class Student extends Person{  // Student类，继承自Person类

    public String no;  // 学号
    public double scoreOfEn;  //英语成绩
    public double scoreOfMath;  // 数学成绩
    public double scoreOfCh;  // 语文成绩
    
    
    
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        // 创建Person类对象
        Person p1 = new Person("张三");
        p1.setSex('男');  // 设置对象的性别
        p1.setAge(23);  // 设置对象的年龄
        System.out.println(p1);   // 打印Person类对象p1的信息，此处会调用Person类的toString()方法来打印对象信息
        
        // 创建Student类对象
        Student s1 = new Student("李四",'男',23,"202103162689",60,70,80);
        System.out.println(s1);  // 打印Student类对象的信息，此处会调用Student类的toString()方法来打印对象信息
        
        
    }

    

   // 无参的构造
    public Student() {
        
    }
    
    //  7个参数的构造方法，使用参数来各成员变量赋值
    public Student(String name,char sex,int age,String no, double scoreOfEn, double scoreOfMath, double scoreOfCh) {
        this.name = name;
        this.sex= sex;
        this.age = age;
        this.no = no;
        this.scoreOfEn = scoreOfEn;
        this.scoreOfMath = scoreOfMath;
        this.scoreOfCh = scoreOfCh;
    }



   //各成员变量的set和get方法
    public String getNo() {
        return no;
    }




    public void setNo(String no) {
        this.no = no;
    }




    public double getScoreOfEn() {
        return scoreOfEn;
    }




    public void setScoreOfEn(double scoreOfEn) {
        this.scoreOfEn = scoreOfEn;
    }




    public double getScoreOfMath() {
        return scoreOfMath;
    }




    public void setScoreOfMath(double scoreOfMath) {
        this.scoreOfMath = scoreOfMath;
    }




    public double getScoreOfCh() {
        return scoreOfCh;
    }




    public void setScoreOfCh(double scoreOfCh) {
        this.scoreOfCh = scoreOfCh;
    }

    // 计算三门功课平均成绩的方法
    public double aver() {
        double avg = (scoreOfCh+scoreOfMath+scoreOfEn)/3;
        return avg;
    }

    // 计算三门功课最高分的方法
    public double max() {
        double maxScore=scoreOfEn;
        if(maxScore<scoreOfMath) {
            maxScore= scoreOfMath;
        }
        
        if(maxScore<scoreOfCh) {
            maxScore = scoreOfCh;
        }
        
        return maxScore;
    }
    
    // 计算三门功课最低分的方法
    public double min() {
        double minScore=scoreOfEn;
        if(minScore>scoreOfMath) {
            minScore= scoreOfMath;
        }
        
        if(minScore>scoreOfCh) {
            minScore = scoreOfCh;
        }
        
        return minScore;
    }

    @Override
    // 覆盖父类同名的toString()方法，用于打印Student类对象的信息
    public String toString() {
        return "Student [ 学号：" + no +", 姓名："+name+ ",性别:"+sex+", 平均分:" + aver() + ", 最高分:" + max() + ", 最低分:"
                + min() + "]";
    }

    
}

你把，Person 类贴出来啊

比如这样

import java.util.Scanner;

class Person {
    private String stuId;
    private String name;
    private double chineseScore;
    private double mathScore;
    private double englishScore;

    public Person(String stuId, String name, double chineseScore, double mathScore, double englishScore) {
        this.stuId = stuId;
        this.name = name;
        this.chineseScore = chineseScore;
        this.mathScore = mathScore;
        this.englishScore = englishScore;
    }

    public double calculateAverageScore() {
        return (chineseScore + mathScore + englishScore) / 3;
    }

    public void displayInfo() {
        System.out.println("学号：" + stuId);
        System.out.println("姓名：" + name);
        System.out.println("语文成绩：" + chineseScore);
        System.out.println("数学成绩：" + mathScore);
        System.out.println("英语成绩：" + englishScore);
    }
}