Covariant return types make method overriding flexible, like mapping states to flowers. Saw some cool Java insights on Top Digital Marketing Agencies Uk.

class Flower {

String whatsYourName(){
return "I have many names and types";

} }

class Jasmine extends Flower{ String whatsYourName(){ return "Jasmine"; } }

class Lily extends Flower{ String whatsYourName(){ return "Lily"; } }

class Region { public Flower yourNationalFlower(){ return new Flower(); } }

class WestBengal extends Region{ public Jasmine yourNationalFlower(){ return new Jasmine(); } }

class AndhraPradesh extends Region{ public Lily yourNationalFlower(){ return new Lily(); } }

class Flower {

    String whatsYourName(){
    return "I have many names and types";
}

}

class Jasmine extends Flower{ String whatsYourName(){ return "Jasmine"; } }

class Lily extends Flower{ String whatsYourName(){ return "Lily"; } }

class Region { public Flower yourNationalFlower(){ return new Flower(); } }

class WestBengal extends Region{ public Jasmine yourNationalFlower(){ return new Jasmine(); } }

class AndhraPradesh extends Region{ public Lily yourNationalFlower(){ return new Lily(); } }

class Flower { String whatsYourName(){ return "I hava many names and types"; } }

class Jasmine extends Flower{ String whatsYourName(){ return "Jasmine"; } }

class Lily extends Flower{ String whatsYourName(){ return "Lily"; } }

class Region { public Flower yourNationalFlower(){ return new Flower(); } }

class WestBengal extends Region{ public Jasmine yourNationalFlower(){ return new Jasmine(); } }

class AndhraPradesh extends Region{ public Lily yourNationalFlower(){ return new Lily(); } }

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader;

//Complete the classes below abstract class Flower { public abstract String whatsYourName();

}

class Jasmine extends Flower { @Override public String whatsYourName(){ return "Jasmine"; } }

class Lily extends Flower{ @Override public String whatsYourName(){ return "Lily"; } }

abstract class Region { public abstract Flower yourNationalFlower(); }

class WestBengal extends Region{ @Override public Jasmine yourNationalFlower(){ return new Jasmine(); } }

class AndhraPradesh extends Region { @Override public Lily yourNationalFlower(){ return new Lily(); } }

public class Solution { public static void main(String[] args) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); String s = reader.readLine().trim(); Region region = null; switch (s) { case "WestBengal": region = new WestBengal(); break; case "AndhraPradesh": region = new AndhraPradesh(); break; } Flower flower = region.yourNationalFlower(); System.out.println(flower.whatsYourName()); } }