class Person 
{ 
 void message() 
  { 
   System.out.println("This is person class"); 
 } 
}   
/* Subclass Student */
class Student extends Person 
{ 
void message() 
 { 
System.out.println("This is student class"); 
 } 
  
 // Note that display() is only in Student class 
 void display() 
{ 
   // will invoke or call current class message() method 
 message(); 
  // will invoke or call parent class message() method 
 super.message(); 
 } 
} 
  
/* Driver program to test */
class Test 
{ 
public static void main(String args[]) 
{ 
 Student s = new Student(); 
// calling display() of Student 
  s.display(); 
 } 
}