Method main

reflection/PetCounter4.java:9–17

(String[] args)

public class PetCounter4 {
  public static void main(String[] args) {
    TypeCounter counter = new TypeCounter(Pet.class);
    new PetCreator().stream()
      .limit(20)
      .peek(counter::count)
      .forEach(p -> System.out.print(
        p.getClass().getSimpleName() + " "));
    System.out.println("\n" + counter);
  }
}
/* Output:
Rat Manx Cymric Mutt Pug Cymric Pug Manx Cymric Rat