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Groups > comp.lang.java.programmer > #7699

Re: contains

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Arved Sandstrom wrote:
> bob wrote:
>> Is there any case-insensitive version of the String contains method?
>> 
> Not that I'm aware of. An easy way to do the deed is to use Pattern;
> something like
> 
> boolean isContained  =
>     Pattern.compile("isThisStringContained",
>         Pattern.CASE_INSENSITIVE)
>     .matcher("stringThatMayContainOther").find();
> 
> does the trick.
> 
> A possibly preferable alternative to doing case-insensitive string
> operations is simply to uppercase (or lowercase) both Strings before
> doing the operation. .toLowerCase() and .toUpperCase() are String
> methods that are available for this purpose. If you plan to do this a
> lot you can write up a small utility method.

Beware of uppercasing and lowercasing - the results can be surprising.

String whatThe = "ß".toUpperCase().toLowerCase();

What should be the value of '"ß".equalsIgnoreCase("ss")'?

What should be the value of '"ß".toUpperCase().toLowerCase().equals("ß")'?

-- 
Lew

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contains bob <bob@coolgroups.com> - 2011-09-08 00:44 -0700
  Re: contains Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-09-08 08:19 -0300
    Re: contains Lew <lewbloch@gmail.com> - 2011-09-08 06:37 -0700
      Re: contains Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-09-08 11:33 -0300
        Re: contains Lew <lewbloch@gmail.com> - 2011-09-08 07:47 -0700
          Re: contains Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-09-08 18:59 +0000
            Re: contains Lew <lewbloch@gmail.com> - 2011-09-08 16:59 -0700
          Re: contains Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-09-08 16:37 -0300
            Re: contains supercalifragilisticexpialadiamaticonormalizeringelimatisticantations <supercalifragilisticexpialadiamaticonormalizeringelimatisticantations@averylongandannoyingdomainname.com> - 2011-09-08 20:14 -0400
  Re: contains Arne Vajhøj <arne@vajhoej.dk> - 2011-09-08 20:05 -0400

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