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cami-la avatar cami-la commented on August 10, 2024 1

Oi, @HayaneWakayama. Tudo bem? (:

Então, acredito que o "erro" esteja na classe Convidado.
Tipo, você definiu qual atributo da classe Convidado através dos métodos equals and hascode irá definir quando o elemento é único?

public class Convidado {
  //atributos
  private String nome;
  private int codigoConvite;

  public Convidado(String nome, int codigoConvite) {
    this.nome = nome;
    this.codigoConvite = codigoConvite;
  }

  public String getNome() {
    return nome;
  }

  public int getCodigoConvite() {
    return codigoConvite;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (!(o instanceof Convidado convidado)) return false;
    return getCodigoConvite() == convidado.getCodigoConvite();
  }

  @Override
  public int hashCode() {
    return Objects.hash(getCodigoConvite());
  }

  @Override
  public String toString() {
    return "Convidado{" +
        "nome='" + nome + '\'' +
        ", codigoConvite=" + codigoConvite +
        '}';
  }
}

Na classe acima, estou definindo que o código do convite ele é único. Então se eu tentar adicionar 2 convidados com o mesmo código de convite, não vai funcionar. Não vai dar erro e não modifica o Set.

O certo não seria cada convidado ter um código único? Ou você está definindo outro atributo para ser único?

from collections-java-api-2023.

HayaneWakayama avatar HayaneWakayama commented on August 10, 2024 1

Oii, consegui resolver!! Obrigada 👍

from collections-java-api-2023.

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