Teacher

package haksa.domain;

public class Teacher extends Person{

private String sub;

public Teacher(){

}

public Teacher(String name,int age,String sub){

super(name,age);

setSub(sub);

}

private void setSub(String sub){

this.sub=sub;

}

public String getSub(){

return sub;

}

//Method overriding.....................

public void printAll(){

 super.printAll();

 System.out.println("학번:"+getSub());

}

};