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  4. Covariant Return Types
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Covariant Return Types

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  • yashdeora98294
     + 0 comments

    Here is Covariant Return types solution in java - https://programmingoneonone.com/hackerrank-covariant-return-types-solution-in-java.html

  • burandemv16696
     + 0 comments

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

    //Complete the classes below class Flower { public String whatsYourName() { return "I have many names and types"; } }

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

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

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

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

    class AndhraPradesh extends Region{ @Override public Flower 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()); } }

  • jhoneder
     + 0 comments
    import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

//Complete the classes below
class Flower {
    public String whatsYourName() {
        return "I have many names and types";
    }
}

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

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

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

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

class AndhraPradesh extends Region {
    @Override
    public Flower 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 = switch (s) {
            case "WestBengal" -> new WestBengal();
            case "AndhraPradesh" -> new AndhraPradesh();
            default -> new Region();
        };
        Flower flower = region.yourNationalFlower();
        System.out.println(flower.whatsYourName());
    }
}

  • carnoxen
     + 0 comments

    attached image must be changed

    one flower's name is Lotus

  • harikagollapall1
     + 0 comments

    java conarient return type hacker rank solution