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Re: Arrays in java

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From Lew <lewbloch@gmail.com>
Newsgroups comp.lang.java.programmer
Subject Re: Arrays in java
Date Mon, 9 Jul 2012 16:14:36 -0700 (PDT)
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Daniel Pitts wrote:
> Here is one that&#39;ll blow your mind:
> 
> int[] arr[] = {{},{1},{2,3},{4,5,6}};
> 
> I'm guessing you could even do 'int[] []arr[]';

Yes, but the JLS strongly discourages that.

“Brackets are allowed in declarators as a nod to the tradition of C and C++. The general rules for variable declaration, however, permit brackets to appear on both the type and in declarators, so that the local variable declaration:

“    float[][] f[][], g[][][], h[];  // Yechh!

“We do not recommend "mixed notation" in an array variable declaration, where brackets appear on both the type and in declarators.”

<http://docs.oracle.com/javase/specs/jls/se7/html/jls-10.html#jls-10.2>

Know. Don't guess. Read the JLS.

Chant 12 times until it's ingrained in your subconscious.

-- 
Lew

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Thread

Arrays in java "mmc.java" <michael.p.mulligan@gmail.com> - 2012-07-09 07:54 -0700
  Re: Arrays in java Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-07-09 11:30 -0400
    Re: Arrays in java Patricia Shanahan <pats@acm.org> - 2012-07-09 15:03 -0700
      Re: Arrays in java Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-07-09 15:16 -0700
        Re: Arrays in java Lew <lewbloch@gmail.com> - 2012-07-09 16:14 -0700
          Re: Arrays in java Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-07-09 21:43 -0700
            Re: Arrays in java Lew <noone@lewscanon.com> - 2012-07-09 23:47 -0700
          Re: Arrays in java Roedy Green <see_website@mindprod.com.invalid> - 2012-07-11 15:32 -0700
            Re: Arrays in java Lew <lewbloch@gmail.com> - 2012-07-11 16:21 -0700
              Re: Arrays in java Gene Wirchenko <genew@ocis.net> - 2012-07-11 17:08 -0700
                Re: Arrays in java Lew <lewbloch@gmail.com> - 2012-07-11 17:20 -0700
                Re: Arrays in java Gene Wirchenko <genew@ocis.net> - 2012-07-11 22:09 -0700
                Re: Arrays in java Lew <lewbloch@gmail.com> - 2012-07-12 11:31 -0700
                Re: Arrays in java Gene Wirchenko <genew@ocis.net> - 2012-07-13 09:07 -0700
                Re: Arrays in java Lew <lewbloch@gmail.com> - 2012-07-13 13:00 -0700
                Re: Arrays in java Patricia Shanahan <pats@acm.org> - 2012-07-15 00:54 -0500
                Re: Arrays in java Jeff Higgins <jeff@invalid.invalid> - 2012-07-16 15:59 -0400
                Re: Arrays in java Patricia Shanahan <pats@acm.org> - 2012-07-16 23:44 -0700
                Re: Arrays in java glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-07-17 08:01 +0000
                Re: Arrays in java Patricia Shanahan <pats@acm.org> - 2012-07-17 03:04 -0700
                Re: Arrays in java Lew <lewbloch@gmail.com> - 2012-07-17 13:02 -0700
                Re: Arrays in java Patricia Shanahan <pats@acm.org> - 2012-07-17 22:03 -0700
                Re: Arrays in java Lew <noone@lewscanon.com> - 2012-07-17 22:10 -0700
                Re: Arrays in java glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-07-18 05:12 +0000
                Re: Arrays in java Patricia Shanahan <pats@acm.org> - 2012-07-17 22:39 -0700
                Re: Arrays in java Martin Gregorie <martin@address-in-sig.invalid> - 2012-07-18 21:24 +0000
                Re: teaching Java and formal grammars Patricia Shanahan <pats@acm.org> - 2012-07-19 06:48 -0700
                Re: teaching Java and formal grammars Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-07-19 10:27 -0400
                Re: teaching Java and formal grammars Gene Wirchenko <genew@ocis.net> - 2012-07-19 10:55 -0700
                Re: Arrays in java Patricia Shanahan <pats@acm.org> - 2012-07-13 08:28 -0500
            Re: Arrays in java Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-07-11 18:33 -0700
  Re: Arrays in java markspace <-@.> - 2012-07-09 09:17 -0700
    Re: Arrays in java Lew <lewbloch@gmail.com> - 2012-07-09 12:56 -0700
  Re: Arrays in java Joshua Cranmer <Pidgeot18@verizon.invalid> - 2012-07-09 12:45 -0400
  Re: Arrays in java Roedy Green <see_website@mindprod.com.invalid> - 2012-07-09 11:03 -0700
  Re: Arrays in java Arun GOPI <arun041@gmail.com> - 2012-07-16 02:53 -0700

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