Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
Processing...

Test String

Substitution
Processing...

Code Generator

Language

Generated Code

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "<div.+?>(.+)?<\\/div>"; final String string = "<h3>Programma en uitslagen</h3>\n" + " <table width=\"100%\">\n" + " <tr>\n" + " <th>ronde</th>\n" + " <th>dag</th>\n" + " <th>datum</th>\n" + " <th></th>\n" + " <th>thuis</th>\n" + " <th>uit</th>\n" + " \n" + " <th> </th>\n" + " <th colspan=\"1\"> </th>\n" + " <th colspan=\"2\">uitslag</th>\n" + " <th>ct</th>\n" + " <th>cu</th>\n" + " <th>&nbsp;</th>\n" + " </tr>\n" + " <tr>\n" + " <td class=\"getal\">1</td>\n" + " <td>Ma.</td>\n" + " <td>22-08-2016 19:30</td>\n" + " <td>\n" + " <div title=\"Add to Calendar\" class=\"addthisevent\">\n" + " <span class=\"start\">22/08/2016 19:30:00</span>\n" + " <span class=\"end\">22/08/2016 22:30:00</span>\n" + " <span class=\"timezone\">Europe/Amsterdam</span>\n" + " <span class=\"title\">Kamperduin 1 vs Kamperduin 2</span>\n" + " <span class=\"description\">Biljartwedstrijd 3Bnd B1 - Ronde 1</span>\n" + " <span class=\"location\"></span>\n" + " <span class=\"organizer\">KNBB</span>\n" + " <span class=\"organizer_email\"></span>\n" + " <span class=\"all_day_event\">false</span>\n" + " <span class=\"date_format\">DD/MM/YYYY</span>\n" + " <span class=\"alarm_reminder\">60</span>\n" + " </div>\n" + " \n" + " </td>\n" + " <td><a href=\"http://www.biljartpoint.nl/index.php?page=teamdetail&team_id=29629&compid=2470&poule=A&district=57\">Kamperduin 1</a></td>\n" + " <td><a href=\"http://www.biljartpoint.nl/index.php?page=teamdetail&team_id=29627&compid=2470&poule=A&district=57\">Kamperduin 2</a></td>\n" + " <td></td>\n" + " <td>&nbsp;</td>\n" + " <td></td>\n" + " <td>&nbsp;</td>\n" + " <td>&nbsp;</td>\n" + " <td>&nbsp;</td>\n" + " <td>&nbsp;</td>\n" + " </tr>"; final String subst = " gdgf"; final Pattern pattern = Pattern.compile(regex, Pattern.DOTALL | Pattern.CASE_INSENSITIVE); final Matcher matcher = pattern.matcher(string); // The substituted value will be contained in the result variable final String result = matcher.replaceFirst(subst); System.out.println("Substitution result: " + result); } }

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html