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Re: how to trim() a String only at the right side?

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On 26/09/13 12:21, lipska the kat wrote:
> On 25/09/13 14:55, Andreas Leitgeb wrote:
>> I'd need to trim only *trailing* whitespace off a String (or
>> StringBuilder)
>> while preserving leading white space. Furthermore (unlike trim()), I'd
>> only
>> strip exact \u0020 chars, no other control chars.
>>
>> I could code a while-loop to search for last non-\u0020 char position
>> and then
>> extract the approriate substring (or delete() the spaces), but if
>> there is a
>> more elegant solution that I've missed in the javadocs, then I'd be
>> glad about
>> a hint.
>>
>> PS: no need to code out any solutions involving explicit loops.
>> PPS: target is Java SE 7
>>
>
> package cljp;
>
> import org.apache.commons.lang3.StringUtils;
>
> public class Stripper {
>
>      /**
>       * @param args
>       */
>      public static void main(String[] args) {
>          String foo = "   foo   ";
>          String bar = "bar";
>
>          System.out.print(foo);
>          System.out.println(bar);
>
>          foo = StringUtils.stripEnd(foo, " ");
>
>          System.out.print(foo);
>          System.out.println(bar);
>
>      }
>
> }
>

Just FYI the apache commons StringUtils.stripEnd method employs while 
loops to get the work done.


lipska

-- 
Lipska the Kat©: Troll hunter, sandbox destroyer
and farscape dreamer of Aeryn Sun
GNU/Linux user #560883 - http://www.linuxcounter.net

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Thread

how to trim() a String only at the right side? Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-09-25 13:55 +0000
  Re: how to trim() a String only at the right side? Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-09-25 10:25 -0400
  Re: how to trim() a String only at the right side? "John B. Matthews" <nospam@nospam.invalid> - 2013-09-25 12:55 -0400
  Re: how to trim() a String only at the right side? Jim Janney <jjanney@shell.xmission.com> - 2013-09-25 13:05 -0600
  Re: how to trim() a String only at the right side? Silvio <silvio@internet.com> - 2013-09-25 21:46 +0200
  Re: how to trim() a String only at the right side? markspace <markspace@nospam.nospam> - 2013-09-25 13:31 -0700
    Re: how to trim() a String only at the right side? markspace <markspace@nospam.nospam> - 2013-09-25 13:41 -0700
      Re: how to trim() a String only at the right side? Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-09-26 17:11 +0000
    Re: how to trim() a String only at the right side? Silvio <silvio@internet.com> - 2013-09-26 12:14 +0200
    Re: how to trim() a String only at the right side? Jim Janney <jjanney@shell.xmission.com> - 2013-09-26 09:44 -0600
      Re: how to trim() a String only at the right side? Arne Vajhøj <arne@vajhoej.dk> - 2013-09-26 13:01 -0400
  Re: how to trim() a String only at the right side? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-09-26 12:21 +0100
    Re: how to trim() a String only at the right side? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-09-26 17:40 +0100
  Re: how to trim() a String only at the right side? Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-09-26 16:56 +0000

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