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Re: How to join a range of array string slots with blank delimiters? Almost opposite of string.split()?

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On 8/24/11 10:27 PM, Gunter Hansen wrote:
> Assume I split a text line with a command like:
>
>    String[] part = line.split("\\s+");
>
> Ok, fine, but how is the opposite command?
> Keep in mind that the delimiter between the joined slots of the target string should be one blank.
>
> Moreover: Can I join e.g. only slots [3],...,[MAX]?
>
> So I need a command similar to:
>
>    String joined = part[3,MAX].join(' ');
>
> How ca I achieve this?
>
> If this is not possible directly then maxbe with a work around?

I am surprised the feature doesn't exist in the JDK; in .NET there's a 
String.Join() method that does exactly what you're asking about.  But 
AFAIK, it doesn't.

That said, it's trivial to write one yourself, or you could use the 
Apache StringUtils library (as this top-three Bing hit mentions in two 
different replies: 
http://stackoverflow.com/questions/187676/string-operations-in-java 
…funny what a web search will turn up, if you just do the search).

And I have to admit, I think Java's take on the "split" function is 
pretty cool, what with regex support and all (which .NET doesn't 
provide, not as a String.Split() feature anyway).  So IMHO Java wins 
this particular feature comparison.  :)

Pete

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How to join a range of array string slots with blank delimiters? Almost opposite of string.split()? GHansen@hotmail.com (Gunter Hansen) - 2011-08-25 05:27 +0000
  Re: How to join a range of array string slots with blank delimiters? Almost opposite of string.split()? Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2011-08-24 22:49 -0700
    回复：Re: How to join a range of array string slots with blank delimiters? Almost opposite of string.split()? Yuxuan Wang <crnlmcn@gmail.com> - 2011-08-24 23:42 -0700
    Re: How to join a range of array string slots with blank delimiters? Almost opposite of string.split()? Arne Vajhøj <arne@vajhoej.dk> - 2011-08-25 22:31 -0400
      Re: How to join a range of array string slots with blank delimiters? Almost opposite of string.split()? Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2011-08-25 20:15 -0700
  Re: How to join a range of array string slots with blank delimiters? Almost opposite of string.split()? Roedy Green <see_website@mindprod.com.invalid> - 2011-08-25 13:05 -0700
    Re: How to join a range of array string slots with blank delimiters? Almost opposite of string.split()? Roedy Green <see_website@mindprod.com.invalid> - 2011-08-31 23:41 -0700
  Re: How to join a range of array string slots with blank delimiters? Almost opposite of string.split()? Arne Vajhøj <arne@vajhoej.dk> - 2011-08-25 22:28 -0400

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