1. 设计Person类， （1）包含姓名(String)、性别(String)和年龄(int)成员变量，以及相应的getter和setter方法。 (2) 至少实现一个构造方法 （3）重写toString方法，输出Person对象信息； 2. 以Person为父类，设计一个学生类Student， （1）增加学号(int)、班级(String)、英语成绩、数学成绩和java成绩 这几个成员变量，以相应的getter和setter方法。 (2) 至少实现一个构造方法 (3) 重写toString()方法，输出Student对象信息。

1. Person类代码：

public class Person {
    private String name; // 姓名
    private String gender; // 性别
    private int age; // 年龄
    
    public Person(String name, String gender, int age) {
        this.name = name;
        this.gender = gender;
        this.age = age;
    }
    
    public String getName() {
        return name;
    }
    
    public void setName(String name) {
        this.name = name;
    }
    
    public String getGender() {
        return gender;
    }
    
    public void setGender(String gender) {
        this.gender = gender;
    }
    
    public int getAge() {
        return age;
    }
    
    public void setAge(int age) {
        this.age = age;
    }
    
    @Override
    public String toString() {
        return "姓名：" + name + "，性别：" + gender + "，年龄：" + age;
    }
}

2. 学生类Student代码：

public class Student extends Person {
    private int studentNumber; // 学号
    private String className; // 班级
    private double englishScore; // 英语成绩
    private double mathScore; // 数学成绩
    private double javaScore; // Java成绩
    
    public Student(String name, String gender, int age, int studentNumber, String className,
                   double englishScore, double mathScore, double javaScore) {
        super(name, gender, age);
        this.studentNumber = studentNumber;
        this.className = className;
        this.englishScore = englishScore;
        this.mathScore = mathScore;
        this.javaScore = javaScore;
    }
    
    public int getStudentNumber() {
        return studentNumber;
    }
    
    public void setStudentNumber(int studentNumber) {
        this.studentNumber = studentNumber;
    }
    
    public String getClassName() {
        return className;
    }
    
    public void setClassName(String className) {
        this.className = className;
    }
    
    public double getEnglishScore() {
        return englishScore;
    }
    
    public void setEnglishScore(double englishScore) {
        this.englishScore = englishScore;
    }
    
    public double getMathScore() {
        return mathScore;
    }
    
    public void setMathScore(double mathScore) {
        this.mathScore = mathScore;
    }
    
    public double getJavaScore() {
        return javaScore;
    }
    
    public void setJavaScore(double javaScore) {
        this.javaScore = javaScore;
    }
    
    @Override
    public String toString() {
        return super.toString() + "，学号：" + studentNumber + "，班级：" + className +
            "，英语成绩：" + englishScore + "，数学成绩：" + mathScore + "，Java成绩：" + javaScore;
    }
}