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
No Match

/
/
gi

Test String

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 = "([\\d]{1,2})\\s+([\\w]+)\\s+([\\d]{4})\\s+-\\s+([\\d]{1,2})\\s+([\\w]+)\\s+([\\d]{4})\\s+([\\d]{1,2})\\s+N[a,ä]chte\\s+([.\\s\\S]+)\\s+DERTOUR"; final String string = "Mit freundlichen Grüßen\n" + "i.A. Center Parcs Europe N.V.\n" + "Tel.: 0221-97303042\n" + "Fax: 0221-97303019\n" + "EMail: dertour@groupepvcp.com\n" + "Vertragspartner: Center Parcs Europe N.V.; Korrespondenzadresse: Kaltenbornweg 1-3, 50679 Köln\n" + "Geschäftsführer: Pascal R.L. Ferracci, Mark David Haak Wegmann\n" + "Von: ltr-staedte.fra@dertouristik.com <ltr-staedte.fra@dertouristik.com>\n" + "Gesendet: Montag, 4. Juli 2016 14:07\n" + "An: PVCP, Dertour\n" + "Betreff: ADVISING=2016/07/04, SeqNo=738, RefNo=201607042684\n" + "CPNK§\n" + "Center Parcs Nordseeküste GmbH\n" + "Attn.: Frau Schwamborn\n" + "Kaltenbornweg 1-3\n" + "D-50679 Köln\n" + "BRV10888 Center Parcs Park Nordseeküste\n" + "-- OK gebucht --\n" + "DER-REF.: 671509446-3 RES-DAT.: 04 JUL 2016\n" + "Personen: 6 Erw.\n" + "Kopie\n" + "01 X BK792\n" + "( EUR 917.60 )\n" + "08 JUL 2016 - 15 JUL 2016 7 Nächte\n" + "Bestätigt nach Anfrage\n" + "Frau MENTHE/URSULA\n" + "Herr MENTHE/CHRISTOPH\n" + "Herr MENTHE/HEIKO\n" + "Frau MENTHE/CHRISTINA\n" + "Kind MENTHE/SILJA (08)\n" + "Kind MENTHE/JANDRIK (04)\n" + "BRV10888 Center Parcs Park Nordseeküste\n" + "-- Bitte stornieren --\n" + "DER-REF.: 671509446-2 RES-DAT.: 29 JUN 2016\n" + "Personen: 6 Erw.\n" + "Kopie: kein komplettes Storno - nur Umbuchung auf Termin 08.-15.07.\n" + "01 X BK792\n" + "( EUR 1,359.20 )\n" + "08 JUL 2016 - 18 JUL 2016 10 Nächte\n" + "Freesale\n" + "Frau MENTHE/URSULA\n" + "Herr MENTHE/CHRISTOPH\n" + "Herr MENTHE/HEIKO\n" + "Frau MENTHE/CHRISTINA\n" + "Kind MENTHE/SILJA (08)\n" + "Kind MENTHE/JANDRIK (04)\n" + "DERTOUR GmbH & Co. KG\n" + "Erlebnisparks FAX: 069/9588-5122\n" + "++ ENDE AVIS ++"; final Pattern pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE); final Matcher matcher = pattern.matcher(string); while (matcher.find()) { System.out.println("Full match: " + matcher.group(0)); for (int i = 1; i <= matcher.groupCount(); i++) { System.out.println("Group " + i + ": " + matcher.group(i)); } } } }

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