Path: csiph.com!eternal-september.org!feeder.eternal-september.org!reader01.eternal-september.org!.POSTED!not-for-mail From: 4ndre4 <4ndre4@4ndre4.invalid> Newsgroups: it.comp.java Subject: =?UTF-8?Q?Re=3a_perch=c3=a8_non_funziona_questo_cast=3f?= Date: Thu, 12 Sep 2019 22:28:51 +0100 Organization: A noiseless patient Spider Lines: 8 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Thu, 12 Sep 2019 21:28:51 -0000 (UTC) Injection-Info: reader02.eternal-september.org; posting-host="75841743c859a735a0ca8699d8e0af20"; logging-data="8298"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19xmW0aaBf7Rr+fmOJ1k9eT" User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 Cancel-Lock: sha1:oDcAg8Wpf+dI+Foi7Hn5qttmktE= In-Reply-To: Content-Language: en-GB Xref: csiph.com it.comp.java:9331 On 06/09/2019 20:04, Gioacchino wrote: > Certamente object è una superclasse, ma non posso usare la stessa classe > Number? Scusa, ma se il tipo che hai definito per gli elementi della lista e` un qualunque ancestor di Number, come puoi aspettarti che il tipo Number vada bene per loopare la lista?