package oop1;/*1.编写出一个通用的人员类（Person），该类具有姓名（Name）、年龄（Age）、性别（Sex）等域。然后对Person 类的继承得到一个学生类（Student），该类能够存放学生的5门课的成绩，并能求出平均成绩。最后在Main函数中对student类的功能进行验证。*/public class Person {String name;int age;String sex;public Person(String name, int age, String sex) {    super();    this.name = name;    this.age = age;    this.sex = sex;}}

package oop1;public class Student extends Person{int yuwen;int shuxue;int yingyu;int wuli;int huaxue;public Student(String name, int age, String sex, int yuwen, int shuxue,        int yingyu, int wuli, int huaxue) {    super(name, age, sex);    this.yuwen = yuwen;    this.shuxue = shuxue;    this.yingyu = yingyu;    this.wuli = wuli;    this.huaxue = huaxue;}    public void showInfo(){        System.out.println(this.name);        System.out.println(this.age);        System.out.println(this.sex);    }public double areafen(){    double area= ((this.yuwen+this.shuxue+this.yingyu+this.wuli+this.huaxue)/5);    System.out.println(area);    return area;}        }

package oop1;public class Test {public static void main(String[] args) {        Student s=new Student("李华", 18, "男", 90,100, 90, 80, 90);    s.showInfo();    s.areafen();    }}