OO Design: inheritance vs type (enum) variable

Is there a general best practice when to use inheritance:

public class Information {
  private String text;
}

public class Message extends Information {
}

public class Faq extends Information {
}

public class News extends Information {
}

and when to use enum as a member variable to distinguish:

public enum InformationType {
  MESSAGE, FAQ, NEWS
}

public class Information {
  private String text;
  private InformationType type;
}

In the code that I work with I have the second - a type field and what bothers me is the code

public void displayInformation(final Information information) {
  if (information.getType == InformationType.MESSAGE) {
     ....
  } else if (information.getType == InformationType.FAQ) {
     ....
  } else if (information.getType == InformationType.NEWS) {
     ....
  } else {
     // some error handling
  }
}

This is definitely a code smell and I don't see how you can have the enum as member variable and not have these if-elses!? If that is true, then you should never have enums as types for the objects, but I see this "pattern" so often!