Write a program to show Polymorphism in Java

Write a program to show Polymorphism in Java

class Flower {

            void which() {

            System.out.println("A Beautiful flower.");

            }

}

class Rose extends Flower {

            void which() {

            System.out.println("Rose");

            }

}

class Lotus extends Flower {

            void which() {

            System.out.println("Lotus.");

            }

}

class Test {

            public static void main(String[] args) {

                        Flower ref1 = new Flower();

                        Flower ref2 = new Rose();

                        Flower ref3 = new Lotus();

                        ref1.which();

                        ref2.which();

                        ref3.which();

            }

             }