class Student {
 protected String name;
 protected int age;
 public Student(String name,int age){
  this.name=name;
  this.age=age;
 }
 public void show(){
  System.out.println("学生的名字为："+this.name+"，学生的年龄为："+this.age);
 }
}



	class Undergrdute extends Student {
 private String degree;
 public Undergrdute(String name,int age,String degree){
  super(name,age);
  this.degree=degree;
 }
 public void show(){
  System.out.println("学生的名字为："+super.name+
  "，学生的年龄为："+super.age+
  "，学生的专业为："+this.degree);
 }
}
public class Test{
 public static void main(String[] args){
  Student s1 = new Student("小明",20);
  Student s2 = new Undergrdute("小辉",25,"计算机");
  s1.show();
  s2.show();
 }
}