Groups > comp.lang.java.programmer > #24611

Re: multiple inheritance in Java

Path	csiph.com!usenet.pasdenom.info!aioe.org!eternal-september.org!feeder.eternal-september.org!mx05.eternal-september.org!.POSTED!not-for-mail
From	Steven Simpson <ss@domain.invalid>
Newsgroups	comp.lang.java.programmer
Subject	Re: multiple inheritance in Java
Date	Wed, 03 Jul 2013 14:12:22 +0100
Organization	A noiseless patient Spider
Lines	29
Message-ID	<mikdaa-un6.ln1@s.simpson148.btinternet.com> (permalink)
References	<multiple-inheritance-20130702021857@ram.dialup.fu-berlin.de> <kqtbe7$mth$1@dont-email.me> <multiple-inheritence-20130702041514@ram.dialup.fu-berlin.de> <61a00488-56ab-4452-bb3c-74e79d1a7d81@googlegroups.com> <6h8daa-4g3.ln1@s.simpson148.btinternet.com> <hYadnW-CWvwPj0nMnZ2dnUVZ8uSdnZ2d@bt.com>
Mime-Version	1.0
Content-Type	text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding	7bit
Injection-Info	mx05.eternal-september.org; posting-host="cc132b90ecd364d1ff0d0f79661909d4"; logging-data="8251"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19YAEaVGzh61Irvj1XDl1waz9ll7HOYzy8="
User-Agent	Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130623 Thunderbird/17.0.7
In-Reply-To	<hYadnW-CWvwPj0nMnZ2dnUVZ8uSdnZ2d@bt.com>
Cancel-Lock	sha1:NLUmWq1cPtwS3Y4zdT/QmyBLeuY=
Xref	csiph.com comp.lang.java.programmer:24611

Show key headers only | View raw

On 03/07/13 13:01, lipska the kat wrote:
> It is possible to add state to an interface so that it is *almost* a 
> class [...]
>
> interface Foo{
>
>    /* explicitly static and final */
>    Integer i = 0;
>    State state = new State(); /* final reference, mutable instance */
>
>    default public void doFoo(Integer x){
>        //i = 10; /* illegal */
>        Integer y = x + i;
>        state.a = y + y;
>        System.out.println("doingFoo, i + x is " + y);
>        System.out.println("doingFoo, accessing state state.a is " + 
> state.a);
>    }
> }

Foo.state is effectively class state, rather than instance state, isn't 
it?  Some possibilities were discussed here:

<http://mail.openjdk.java.net/pipermail/lambda-dev/2012-July/005165.html>


-- 
ss at comp dot lancs dot ac dot uk

Thread

Re: multiple inheritance in Java Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-07-01 21:52 -0400
  Re: multiple inheritance in Java Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-07-02 00:09 -0400
    Re: multiple inheritance in Java Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-07-02 08:13 -0400
      Re: multiple inheritance in Java Arne Vajhøj <arne@vajhoej.dk> - 2013-07-04 17:33 -0400
        Re: multiple inheritance in Java Sebastian <news@seyweiler.dyndns.org> - 2013-07-05 08:04 +0200
    Re: multiple inheritance in Java Jeff Higgins <jeff@invalid.invalid> - 2013-07-02 13:17 -0400
      Re: multiple inheritance in Java Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-07-02 13:40 -0400
        Re: multiple inheritance in Java Jeff Higgins <jeff@invalid.invalid> - 2013-07-02 14:29 -0400
          Re: multiple inheritance in Java Jeff Higgins <jeff@invalid.invalid> - 2013-07-02 15:12 -0400
            Re: multiple inheritance in Java Arne Vajhøj <arne@vajhoej.dk> - 2013-07-04 17:23 -0400
              Re: multiple inheritance in Java Arne Vajhøj <arne@vajhoej.dk> - 2013-07-04 17:25 -0400
          Re: multiple inheritance in Java Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-07-02 15:44 -0400
            Re: multiple inheritance in Java Jeff Higgins <jeff@invalid.invalid> - 2013-07-02 16:28 -0400
              Re: multiple inheritance in Java Jeff Higgins <jeff@invalid.invalid> - 2013-07-02 16:44 -0400
              Re: multiple inheritance in Java Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-07-02 17:13 -0400
                Re: multiple inheritance in Java Jeff Higgins <jeff@invalid.invalid> - 2013-07-02 22:12 -0400
  Re: multiple inheritance in Java Lew <lewbloch@gmail.com> - 2013-07-02 11:53 -0700
    Re: multiple inheritance in Java Steven Simpson <ss@domain.invalid> - 2013-07-03 10:46 +0100
      Re: multiple inheritance in Java lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-07-03 13:01 +0100
        Re: multiple inheritance in Java Steven Simpson <ss@domain.invalid> - 2013-07-03 14:12 +0100
          Re: multiple inheritance in Java lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-07-03 14:49 +0100
        Re: multiple inheritance in Java Arne Vajhøj <arne@vajhoej.dk> - 2013-07-06 22:19 -0400
  Re: multiple inheritance in Java Arne Vajhøj <arne@vajhoej.dk> - 2013-07-04 17:36 -0400
    Re: multiple inheritance in Java Gene Wirchenko <genew@telus.net> - 2013-07-05 11:01 -0700

csiph-web