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I need to replace multiple consecutive spaces with pipe character ,I tried various regular expression but i couldn't get the output .Can anyone give me solution for this

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Try this:

String s = ' this is a    multiple spaces sample   ';
System.debug(s.replaceAll('\\s+','|'));

gives you this result: DEBUG||this|is|a|multiple|spaces|sample|

To replace ONLY when you have more than one space use this:

System.debug(s.replaceAll('[ ]{2,}','|'));

this returns : 

DEBUG| this is a|multiple spaces sample|
12:08:18.174 (37342000)|CUMULATIVE_LIMIT_USAGE
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  • I tried this long back ...I need to remove only multiple consecutive spaces with a pipe character ...not the single space i.e. 'this is a|multiple spaces sample'
    – Manoj Chandran
    Commented Mar 12, 2014 at 10:58
  • i updated my answer
    – Martin Borthiry
    Commented Mar 12, 2014 at 11:10
  • It worked ...thank you.Can you give me some links to study about how to create regular expressions if u can..
    – Manoj Chandran
    Commented Mar 12, 2014 at 11:15
  • Uff, That is a really tough and large topic, start here en.wikipedia.org/wiki/Regular_expression
    – Martin Borthiry
    Commented Mar 12, 2014 at 11:19
  • i want one more help from you...I need to replace all special characters except those between strings o tried this [^\\w\'] ..but it is replacing special characters between the quotes
    – Manoj Chandran
    Commented Mar 17, 2014 at 10:48

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