Module java.base
Package java.util.regex
Classes for matching character sequences against patterns specified by regular expressions.
An instance of thePattern class represents a regular expression that is specified in string form in a syntax similar to that used by Perl.
Instances of theMatcher class are used to match character sequences against a given pattern. Input is provided to matchers via theCharSequence interface in order to support matching against characters from a wide variety of input sources.
Unless otherwise noted, passing anull argument to a method in any class or interface in this package will cause aNullPointerException to be thrown.
Related Documentation
An excellent tutorial and overview of regular expressions isMastering Regular Expressions, Jeffrey E. F. Friedl, O'Reilly and Associates, 1997.
- Since:
- 1.4
Interface Summary Interface Description MatchResult The result of a match operation.Class Summary Class Description Matcher An engine that performs match operations on acharacter sequence by interpreting aPattern.Pattern A compiled representation of a regular expression.Exception Summary Exception Description PatternSyntaxException Unchecked exception thrown to indicate a syntax error in a regular-expression pattern.