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(); } }