Characters classes specifies a list of possible characters : Basic Regular Expressions « Regular Expressions « Java

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Java » Regular Expressions » Basic Regular Expressions Screenshots  Characters classes specifies a list of possible characters    Character Class Meta-Character            Matches .                                         Any single character \d                                        A digit [0-9] \D                                        A nondigit [^0-9] \s                                        A whitespace character [ \t\n\x0B\f\r] \S                                        A nonwhitespace character[^\s] \w                                        A word character  [a-zA-Z_0-9] \W                                        A nonword character [^\w]         Related examples in the same category 1.  Meta-characters to match against certain string boundaries 2.  POSIX character classes and Java character classes 3.  Character Class Matches 4.  Greedy Operator Description 5.  Reluctant (Lazy) Operator Description 6.  Displays directory listing using regular expressions 7.  Like Regular Expression Demo in a TextField 8.  StringConvenience -- demonstrate java.lang.String convenience routine 9.  Split a String into a Java Array of Strings divided by an Regular Expressions 10.  Simple example of using Regular Expressions class. 11.  Match the Q[^u] pattern against strings from command line 12.  demonstrate Regular Expressions: Match -> group() 13.  Show case control using Regular Expressions class. 14.  Matcher and Pattern demo 15.  Matcher and Pattern demo 2 16.  Standalone Swing GUI application for demonstrating Regular expressions. 17.  Regular Expressions in Action 18.  Match SQL string