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

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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?

Gunther

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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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