java类重写equals和hashCode方法

@Override
public boolean equals(Object o) {
   if (o == this) return true;
   if (!(o instanceof FilmInfo)) {
      return false;
   }
   FilmInfo filmInfo = (FilmInfo ) o;
   return filmSource == filmInfo.filmSource && Objects.equals(sourceFilmId, filmInfo.sourceFilmId) &&  Objects.equals(filmName, filmInfo.filmName) &&
         Objects.equals(showtime, filmInfo.showtime) && Objects.equals(picture, filmInfo.picture) && Objects.equals(filmLength, filmInfo.filmLength) &&
         Objects.equals(country, filmInfo.country) && Objects.equals(language, filmInfo.language);
}


@Override
public int hashCode() {
   return Objects.hash(filmSource, sourceFilmId, filmName,showtime,picture,filmLength,country,language);
}