Sealed classes switching on instanceof

SealedSwitch.java

import java.util.List;

/*
* ❯ java ./SealedSwitch.java
* SHIZZLES FOR MY NIZZLES!!!
* Whooof!
* Whooof!
* Whooof!
*/
public class SealedSwitch {
    sealed interface Effect permits Shout, Bark {
    }

    record Shout(String value) implements Effect { }
    record Bark(int times) implements Effect {}

    public static void main(String ...args){

        final var effects = List.of(new Shout("Shizzles for my nizzles"), new Bark(3));


        for(var effect: effects) {
            switch(effect) {
                case Bark b  -> {
                                 for(int i = 0; i < b.times; i++)
                                    System.out.println("Whooof!");
                }
                case Shout s -> System.out.println(s.value.toUpperCase() + "!!!");
            }
        }

    }
}