Groups > comp.lang.java.programmer > #38225

Re: Exit from loop?

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From	Arne Vajhøj <arne@vajhoej.dk>
Newsgroups	comp.lang.java.programmer
Subject	Re: Exit from loop?
Date	Wed, 4 Apr 2018 15:25:52 -0400
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On 4/4/2018 3:05 PM, Eric Douglas wrote:
> Does it cause any problems to exit from loop, or is it considered bad form?
> 
> ie can you do this?
> 
>       
>       public static int randomMethod() {
>            int i = 0;
>            int tries = 0;
>            for (int ctr = 0; ctr < 100; ctr++) {
>                 i = java.util.concurrent.ThreadLocalRandom.current().nextInt(1, 10);
>                 tries++;
>                 if (i == 3) {
>                      return tries;
>                 }
>            }
>            return tries;
>       }
> 
> or should you do this?
>       
>       public static int randomMethod() {
>            int i = 0;
>            int tries = 0;
>            for (int ctr = 0; ctr < 100; ctr++) {
>                 i = java.util.concurrent.ThreadLocalRandom.current().nextInt(1, 10);
>                 tries++;
>                 if (i == 3) {
>                      break;
>                 }
>            }
>            return tries;
>       }
> 
> This is of course a simple sample, where the value getting assigned in the loop, and/or the value returned from the method are normally complex objects.

Between those two I would probably do the last, but
I see no big problems with the first.

If I had the choice I would probably use a do while loop.

int ctr = 0;
X o = new X();
do {
     o.something();
     ctr++;
} while(ctr < 100 && ThreadLocalRandom.current().nextInt(1, 10) != 3);

Arne

Thread

Exit from loop? Eric Douglas <e.d.programmer@gmail.com> - 2018-04-04 12:05 -0700
  Re: Exit from loop? Arne Vajhøj <arne@vajhoej.dk> - 2018-04-04 15:25 -0400
    Re: Exit from loop? Eric Douglas <e.d.programmer@gmail.com> - 2018-04-04 12:44 -0700
      Re: Exit from loop? Arne Vajhøj <arne@vajhoej.dk> - 2018-04-04 19:51 -0400
        Re: Exit from loop? Martin Gregorie <martin@mydomain.invalid> - 2018-04-05 10:46 +0000
      Re: Exit from loop? Daniele Futtorovic <da.futt.news@laposte.net> - 2018-04-06 18:19 +0200

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