package exercise1; class Student1{ String name; int age; Student1(String name,int age){ this.name=name; this.age=age; } public void show(){ System.out.println("name: "+name+" "+"age: "+age); } } class Undergrate extends Student1{ String degree; Undergrate(String name, int age,String degree) { super(name, age); this.degree = degree; // TODO Auto-generated constructor stub } public void show(){ System.out.println("name: "+name+" "+"age: "+age+" "+"degree: "+degree); } } public class StudentThree{ public static void main(String[] args){ Student1 student = new Student1("Bob", 16); student.show(); Undergrate undergrate = new Undergrate("Alice", 24, "shuoshi"); undergrate.show(); } }