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| Classes for matching character sequences against patterns specified by regular |
| expressions. |
| |
| <p> An instance of the {@link java.util.regex.Pattern} class represents a |
| regular expression that is specified in string form in a syntax similar to |
| that used by Perl. |
| |
| <p> Instances of the {@link java.util.regex.Matcher} class are used to match |
| character sequences against a given pattern. Input is provided to matchers via |
| the {@link java.lang.CharSequence} interface in order to support matching |
| against characters from a wide variety of input sources. </p> |
| |
| <p> Unless otherwise noted, passing a <tt>null</tt> argument to a method |
| in any class or interface in this package will cause a |
| {@link java.lang.NullPointerException NullPointerException} to be thrown. |
| |
| <h2>Related Documentation</h2> |
| |
| <p> An excellent tutorial and overview of regular expressions is <a |
| href="http://www.oreilly.com/catalog/regex/"><i>Mastering Regular |
| Expressions</i>, Jeffrey E. F. Friedl, O'Reilly and Associates, 1997.</a> </p> |
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| @since 1.4 |
| @author Mike McCloskey |
| @author Mark Reinhold |
| |
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