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From: "Dr.UgoGagliardelli" <do.not.spam@me.please>
Newsgroups: it.comp.java
Subject: =?UTF-8?Q?Re=3a_perch=c3=a8_non_funziona_questo_cast=3f?=
Date: Sat, 7 Sep 2019 09:14:52 +0200
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Xref: csiph.com it.comp.java:9326

Il 06.09.2019 21.04, Gioacchino ha scritto:
> Metodo (List <? T super Number>  numbers) ...
> 
> 
> poi in un ciclo:
> 
> for ( Number n : numbers )
> 
> etc
> 
> e mi da errore, mi dice type mismatch e che non puņ castare (? super 
> number) to number , e mi propone
> 
> for ( Object n : numbers )
> 
> 
> Certamente object č una superclasse, ma non posso usare la stessa classe 
> Number?
Ebbene no. Hai una lista che ammette le superclassi di Number, quindi 
solo Object.