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Groups > comp.lang.java.programmer > #9592

Re: iteration blues

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On Nov 4, 3:55 pm, Robert Klemme <shortcut...@googlemail.com> wrote:
> On 04.11.2011 18:46, Lew wrote:
>
>
>
>
>
>
>
>
>
> > Robert Klemme wrote:
> >> I'm surprised nobody seems to mention Iterator.remove().
>
> > You must have missed:
> >>> If your algorithm is (pseudocoded):
>
> >>> for each item in collection process item delete item from
> >>> collection
>
> >>> you will need the iterator.
>
> > All right, yeah, it *did* require that one be at least minimally
> > familiar with 'java.util.Iterator' to understand exactly why "you
> > will need the iterator", but every Java programmer from beginner
> > onward surely is aware of 'Iterator#remove()', right?  Surely no one
> > calling themselves a Java programmer could be ignorant of such a
> > basic, fundamental, early concept in Java?  Could they?
>
> Well...  Judging from my experience Iterator.remove() seems to be less
> known than the other methods of that interface - although not as much as
> methods (and even the existence) of ListIterator. :-)  I would consider
> this pretty basic knowledge as you did - probably in the same area as
> the ternary operator - but empiricism often proves our assumptions
> wrong. :-)
>
> Cheers
>
>         robert
>
> --
> remember.guy do |as, often| as.you_can - without endhttp://blog.rubybestpractices.com/

Iterator.remove() is probably not well-known because it's an optional
operation.  Also, I see no easy way to tell if a given container type
supports it other than to try it.

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iteration blues bob <bob@coolgroups.com> - 2011-11-03 08:37 -0700
  Re: iteration blues Knute Johnson <nospam@knutejohnson.com> - 2011-11-03 08:51 -0700
    Re: iteration blues Lew <lewbloch@gmail.com> - 2011-11-03 09:32 -0700
      Re: iteration blues Arne Vajhøj <arne@vajhoej.dk> - 2011-11-04 21:00 -0400
        Re: iteration blues spk <jhic@speak.invalid> - 2011-11-05 07:48 -0400
  Re: iteration blues Henk van Voorthuijsen <voorth@xs4all.nl> - 2011-11-03 09:31 -0700
    Re: iteration blues Lew <lewbloch@gmail.com> - 2011-11-03 13:50 -0700
      Re: iteration blues Henk van Voorthuijsen <voorth@xs4all.nl> - 2011-11-04 08:07 -0700
    Re: iteration blues Arne Vajhøj <arne@vajhoej.dk> - 2011-11-04 21:02 -0400
  Re: iteration blues Roedy Green <see_website@mindprod.com.invalid> - 2011-11-03 10:08 -0700
  Re: iteration blues Travers Naran <tnaran@gmail.com> - 2011-11-03 22:22 -0700
  Re: iteration blues Robert Klemme <shortcutter@googlemail.com> - 2011-11-04 10:34 +0100
    Re: iteration blues Lew <lewbloch@gmail.com> - 2011-11-04 10:46 -0700
      Re: iteration blues Robert Klemme <shortcutter@googlemail.com> - 2011-11-04 23:55 +0100
        Re: iteration blues Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-04 21:06 -0400
        Re: iteration blues Lew <lewbloch@gmail.com> - 2011-11-04 20:30 -0700
        Re: iteration blues bob <bob@coolgroups.com> - 2011-11-05 12:40 -0700
          Re: iteration blues Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-05 16:14 -0400
            Re: iteration blues Lew <lewbloch@gmail.com> - 2011-11-05 13:41 -0700
    Re: iteration blues bob <bob@coolgroups.com> - 2011-11-04 13:42 -0700

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