Re: Namespaces in Java?

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#5023

From: Passero
Date: Fri, 13 Jun 2003 14:14

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"Ingo Wassink" <i.wassink@student.utwente.nl> schreef in bericht
news:bc2jbj$kqr$1@netlx020.civ.utwente.nl...
> > Het wordt pas spannend als je geen int wilt, maar een type safe
> > enum.
> >
>
> Is volgens mij ook nog niet zo moeilijk:
>
> public final class Boolean{
>   public static Boolean TRUE = new Boolean();
>   public static Boolean FALSE = new Boolean();
>
>   private final Boolean(){
>   }
>
>   public void not(Boolean B){
>    if(B == TRUE) return FALSE;
>    return TRUE;
>   }
>   etc..
> }

Die methode lukt in 1 lijntje :
public void not(Boolean B) { return (!B); }

> Nu heeft Boolean maar twee mogelijke instanties namelijk TRUE en FALSE.
> Hetzelfde kun je doen voor andere dingen.
>
> Groetjes Ingo
>
>

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From: "Passero" <yanongena@pandora.be>
Newsgroups: be.comp.programming,nl.comp.programmeren
References: <bc2fqd$1iba$1@nl-news.euro.net> <1hi9evkahh5ra31jcaj86be03k3jlhv3oj@4ax.com> <bc2jbj$kqr$1@netlx020.civ.utwente.nl>
Subject: Re: Namespaces in Java?
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