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Groups > comp.lang.java.programmer > #8258

Re: borrowing Constants

Date 2011-09-23 22:32 -0400
From Arne Vajhøj <arne@vajhoej.dk>
Newsgroups comp.lang.java.programmer
Subject Re: borrowing Constants
References <cf9q77h3gnhunlqpckpsobog4oqvlhiga7@4ax.com> <j5jcmu$hqq$1@dont-email.me>
Message-ID <4e7d4134$0$294$14726298@news.sunsite.dk> (permalink)
Organization SunSITE.dk - Supporting Open source

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On 9/23/2011 9:44 PM, markspace wrote:
> On 9/23/2011 5:40 PM, Roedy Green wrote:
>> When you use Class B, does all of class A get instantiated?
>> Does all of class A get put in B's jar?
>
> I think so, yes. Not "instantiated" as others pointed out but
> initialized. But yes, regardless.
>
> I believe you can get around this by making VERSION final. The compiler
> is allowed (possibly required?) to copy final static values as a kind of
> constant, in order to avoid this kind of unneeded initialization.
>
> class A
> {
> static final String VERSION = "1.0b";
> }

But that introduces the risk of B not being updated when
A is updated.

Arne

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Thread

borrowing Constants Roedy Green <see_website@mindprod.com.invalid> - 2011-09-23 17:40 -0700
  Re: borrowing Constants Arne Vajhøj <arne@vajhoej.dk> - 2011-09-23 20:44 -0400
    Re: borrowing Constants Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-09-23 22:10 -0300
      Re: borrowing Constants Roedy Green <see_website@mindprod.com.invalid> - 2011-09-23 18:39 -0700
        Re: borrowing Constants Arne Vajhøj <arne@vajhoej.dk> - 2011-09-23 22:17 -0400
        Re: borrowing Constants Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2011-09-25 11:25 -0700
          Re: borrowing Constants Lew <lewbloch@gmail.com> - 2011-09-25 11:36 -0700
      Re: borrowing Constants Arne Vajhøj <arne@vajhoej.dk> - 2011-09-23 22:30 -0400
  Re: borrowing Constants Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-09-23 21:15 -0400
    Re: borrowing Constants Roedy Green <see_website@mindprod.com.invalid> - 2011-09-23 18:43 -0700
  Re: borrowing Constants markspace <-@.> - 2011-09-23 18:44 -0700
    Re: borrowing Constants Lew <lewbloch@gmail.com> - 2011-09-23 19:19 -0700
    Re: borrowing Constants Arne Vajhøj <arne@vajhoej.dk> - 2011-09-23 22:32 -0400
  Re: borrowing Constants Lew <lewbloch@gmail.com> - 2011-09-23 19:11 -0700
    Re: borrowing Constants Lew <lewbloch@gmail.com> - 2011-09-23 19:26 -0700
  Re: borrowing Constants v_borchert@despammed.com (Volker Borchert) - 2011-09-24 09:44 +0000
  Re: borrowing Constants Roedy Green <see_website@mindprod.com.invalid> - 2011-09-24 15:38 -0700
  Re: borrowing Constants Roedy Green <see_website@mindprod.com.invalid> - 2011-09-24 17:09 -0700
    Re: borrowing Constants Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-09-24 20:14 -0400
    Re: borrowing Constants markspace <-@.> - 2011-09-24 18:18 -0700
      Re: borrowing Constants Arne Vajhøj <arne@vajhoej.dk> - 2011-09-25 22:36 -0400
    Re: borrowing Constants Arne Vajhøj <arne@vajhoej.dk> - 2011-09-25 22:35 -0400
  Re: borrowing Constants Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2011-09-26 01:22 +0200

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