Groups > comp.lang.java.programmer > #31452

Re: Simple if-exercises

From	v_borchert@despammed.com (Volker Borchert)
Newsgroups	comp.lang.java.programmer
Subject	Re: Simple if-exercises
Date	2015-04-03 23:49 +0000
Organization	Private site at Eddersheim, Germany
Message-ID	<mfn8v5$8mq$1@Gaia.teknon.de> (permalink)
References	(1 earlier) <mfjhvg$1ka$1@dont-email.me> <mflc17$mdd$1@Gaia.teknon.de> <mflq2e$nsq$1@dont-email.me> <mfmkp4$3ga$1@Gaia.teknon.de> <mfmpq3$2tt$2@dont-email.me>

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Martin Gregorie wrote:
> On Fri, 03 Apr 2015 18:05:24 +0000, Volker Borchert wrote:
> 
> > Martin Gregorie wrote:
> >> switch(arithmetic expression)
> >        sgn(                 )
> >
> I think you meant Math.signum() - sgn isn't Java, its a VBA/Excel/Access
> function.
> 
> But in any case using Math.signum() looks kind of messy by the time 
> you've called the static function and then coerced its result to integer:

Write your own static int sgn(int). That would even be the type
of simple (but for once, useful!) exercise the OP was looking for.

-- 

"I'm a doctor, not a mechanic." Dr Leonard McCoy <mccoy@ncc1701.starfleet.fed>
"I'm a mechanic, not a doctor." Volker Borchert  <v_borchert@despammed.com>

Thread

Re: Simple if-exercises Jeff Higgins <jeff@invalid.invalid> - 2015-04-02 09:58 -0400
  Re: Simple if-exercises Jeff Higgins <jeff@invalid.invalid> - 2015-04-02 10:53 -0400
    Re: Simple if-exercises Jerry Stuckle <jstucklex@attglobal.net> - 2015-04-02 15:08 -0400
  Re: Simple if-exercises Gene Wirchenko <genew@telus.net> - 2015-04-02 16:46 -0700
  Re: Simple if-exercises v_borchert@despammed.com (Volker Borchert) - 2015-04-03 06:29 +0000
    Re: Simple if-exercises Martin Gregorie <martin@address-in-sig.invalid> - 2015-04-03 10:29 +0000
      Re: Simple if-exercises v_borchert@despammed.com (Volker Borchert) - 2015-04-03 18:05 +0000
        Re: Simple if-exercises Martin Gregorie <martin@address-in-sig.invalid> - 2015-04-03 19:31 +0000
          Re: Simple if-exercises Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-04-03 16:07 -0400
            Re: Simple if-exercises Martin Gregorie <martin@address-in-sig.invalid> - 2015-04-03 21:45 +0000
          Re: Simple if-exercises v_borchert@despammed.com (Volker Borchert) - 2015-04-03 23:49 +0000
    Re: Simple if-exercises Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-04-03 07:38 -0400
      Re: Simple if-exercises Jeff Higgins <jeff@invalid.invalid> - 2015-04-03 20:06 -0400

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