Java Progress:extends

//Name:Extends
//Description:Practise using extends
//Auther:CrackCell
//Date:26-Jan-07

class Human{
 String name=null;
 int sex; //0=male,1=female
 Human(){
  System.out.println("Human");
 }
}

class Student extends Human{
 String studentID;
 Student(){
  System.out.println("Student.");
 }
}

public class Extends{
 public static void main(String[] args){
  Student S1=new Student();
  S1.name="TanMenglong";
  S1.sex=0;
  S1.studentID="200632580051";
  System.out.println(S1.name);
 }
}