java，输出代码也要，输出代码，求，java基础应用

Question

java基础应用，输出代码也要，用注释就更好了，求，输出代码，java

Answer 1

public class StudentTest {
    public static void main(String[] args) {
        //创建Student对象
        Student student=new Student("小白",22);
        //创建Undergraduate对象
        Undergraduate undergraduate=new Undergraduate("小小",24,"研究生");
        //调用方法输出信息
        student.show();
        undergraduate.show();
    }
}

class Student{
    //定义属性
    public String name;

    public int age;

    //构造方法
    public Student(){}
    public Student(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public void show(){
        System.out.println("姓名："+name+",年龄："+age);
    }
}

class Undergraduate extends Student{
    //定义属性
    private String degree;

    public Undergraduate(){}

    public Undergraduate(String name, int age, String degree) {
        super(name, age);
        this.degree = degree;
    }

    public void show(){
        System.out.println("姓名："+name+",年龄："+age+",学位："+degree);
    }
}