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Regular expressions simplify pattern-matching code

Discover the elegance of regular expressions in text-processing scenarios that involve pattern matching

By Jeff Friesen, JavaWorld.com, 02/07/03

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  • Intersection: consists of characters common to all nested classes and matches only common characters. Example: [a-z&&[d-f]] matches characters d, e, and f. The following command line offers a second example:

    java RegexDemo [aeiouy&&[y]] party


    java RegexDemo [aeiouy&&[y]] party matches y in [aeiou&&[y]] with y in party. No other matches exist.

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