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Re: A small exercise

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Date	Sat, 20 Apr 2013 17:02:39 +0100
From	lipska the kat <"nospam at neversurrender dot co dot uk">
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Subject	Re: A small exercise
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On 20/04/13 14:11, Stefan Ram wrote:
>    Try to predict the behavior of the execution or compilation
>    of the following code!
>
> public class Main
> { final int a; final int b;
>    Main(){ this.a = 0; Main.this.b = 0; }
>    public static void Main( final java.lang.String[] args )
>    { new Main(); }}
>
>    (I made this observation while programming something else
>    using Oracle JDK 7, but I have not read the JLS about it yet.)

open-jdk6 and open-jdk7

I think that logically, Main.this.b refers to the enclosing *instance* 
which implies that the class has been instantiated, final fields can 
only be initialized once in a constructor so trying to (logically) 
assign a value to a final variable after instantiation is illegal.

I think :-|

If you remove the final modifier from b then the code compiles, but then 
you know this already.

lipska

-- 
Lipska the Kat©: Troll hunter, sandbox destroyer
and farscape dreamer of Aeryn Sun

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Re: A small exercise lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-04-20 17:02 +0100
  Re: A small exercise Arne Vajhøj <arne@vajhoej.dk> - 2013-04-20 15:15 -0400
    Re: A small exercise lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-04-21 11:04 +0100
      Re: A small exercise Arne Vajhøj <arne@vajhoej.dk> - 2013-04-26 22:13 -0400
        Re: A small exercise lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-04-27 09:25 +0100
          Re: A small exercise Arne Vajhøj <arne@vajhoej.dk> - 2013-04-27 21:58 -0400
            Re: A small exercise "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2013-04-28 11:34 +0100
              Re: A small exercise Martin Gregorie <martin@address-in-sig.invalid> - 2013-04-28 12:17 +0000
              Re: A small exercise lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-04-28 14:05 +0100
                Re: A small exercise Sven Köhler <remove-sven.koehler@gmail.com> - 2013-04-28 16:14 +0300
                Re: A small exercise lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-04-28 14:54 +0100
                Re: A small exercise Arne Vajhøj <arne@vajhoej.dk> - 2013-04-28 09:57 -0400
              Re: A small exercise Arne Vajhøj <arne@vajhoej.dk> - 2013-04-28 10:14 -0400
  Re: A small exercise Sven Köhler <remove-sven.koehler@gmail.com> - 2013-04-27 22:28 +0300
    Re: A small exercise markspace <markspace@nospam.nospam> - 2013-04-27 13:53 -0700
      Re: A small exercise Arne Vajhøj <arne@vajhoej.dk> - 2013-04-27 21:44 -0400
    Re: A small exercise lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-04-28 10:37 +0100

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