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Groups > comp.lang.java.programmer > #14099

Re: Help with program

From Leif Roar Moldskred <leifm@dimnakorr.com>
Subject Re: Help with program
Newsgroups comp.lang.java.programmer
References <0d9aaec9-10f1-42b5-af5c-f4d563a934ab@e42g2000yqa.googlegroups.com> <M56dnaRDzNGAvj3SnZ2dnUVZ_qKdnZ2d@earthlink.com> <jnpcj3$i98$1@speranza.aioe.org> <LsadnfXeh_Mmqz3SnZ2dnUVZ_r6dnZ2d@earthlink.com> <swap-20120501220208@ram.dialup.fu-berlin.de>
Message-ID <vpSdnYjTtsew2j3SnZ2dnUVZ7vudnZ2d@giganews.com> (permalink)
Date 2012-05-01 15:27 -0500

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Stefan Ram <ram@zedat.fu-berlin.de> wrote:
> 
>  What could be more clean and direct than
> 
> java.util.Collections.swap( java.util.Arrays.asList( a ), i, j )
> 
>  (assuming »a« has base type Integer[ as given in the OP])?

Ow. You just turned a simple O( 1 ) operation into O( N ). You're
solution is also probably wrong, as it leaves a unchanged.

-- 
Leif Roar Moldskred

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Thread

Help with program mbuenik5@yahoo.com - 2012-05-01 10:31 -0700
  Re: Help with program Patricia Shanahan <pats@acm.org> - 2012-05-01 10:53 -0700
    Re: Help with program glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-05-01 19:12 +0000
      Re: Help with program Patricia Shanahan <pats@acm.org> - 2012-05-01 12:17 -0700
        Re: Help with program Leif Roar Moldskred <leifm@dimnakorr.com> - 2012-05-01 15:27 -0500
          Re: Help with program Leif Roar Moldskred <leifm@dimnakorr.com> - 2012-05-01 15:32 -0500
        Re: Help with program Arne Vajhøj <arne@vajhoej.dk> - 2012-05-01 19:51 -0400
          Re: Help with program Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-01 17:06 -0700
            Re: Help with program Patricia Shanahan <pats@acm.org> - 2012-05-01 18:08 -0700
              Re: Help with program Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-02 12:53 -0700
            Re: Help with program Arne Vajhøj <arne@vajhoej.dk> - 2012-05-02 16:25 -0400
              Re: Help with program Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-02 15:27 -0700
  Re: Help with program Tsukino Usagi <usagi@tsukino.ca> - 2012-05-02 03:15 +0900
    Re: Help with program markspace <-@.> - 2012-05-01 11:25 -0700
  Re: Help with program Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-01 11:16 -0700
  Re: Help with program markspace <-@.> - 2012-05-01 11:16 -0700
  Re: Help with program rossum <rossum48@coldmail.com> - 2012-05-01 20:41 +0100
  Re: Help with program Roedy Green <see_website@mindprod.com.invalid> - 2012-05-01 18:15 -0700

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