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 = "([hale]*\\w*\\.?\\d*)([\\.\\/\\-_\\s]?)([stand]*)(\\d+)([a-z]*)"; final String string = "InnoTrans 16 Reinigung 23/705 Vorr./Tägl.\n" + "InnoTrans 16 Reinigung 17/113 Vorr./Tägl.\n" + "InnoTrans 16 Reinigung 26./141 Vorr./Tägl.\n" + "InnoTrans 16 Reinigung 6.2/507 Vorr./Tägl.\n" + "trans 4.1/412 vor u tä\n" + "Trans 16,23/606, Vor + tägl. Reinigung\n" + "Trans 16 10.2/300 Vor-, täglich\n" + "FUNK 16 Reinigung 14.1/124 Vorr./Tägl.\n" + "STORNO !!!InnoTrans 16 Reinigung 4.2/208a Vorr./Tägl.\n" + "Inno 16 Vorr. + tägl. rein. H. 7.2C_305\n" + "Inno 16 Vorr. + tägl. Rein. H.17-304\n" + "Inno 16 Vorr. + tägl. Rein. H. 17_304\n" + "InnoTrans 16 Reinigung CCB A/101 Vorr./Tägl.\n" + "InnoTrans 16 Reinigung FGSUED O/553 Reinigung Aufbau+Gl./Tägl.+Gl.\n" + "InnoTrans 16 Reinigung FGSUED O/240 Vorr./Tägl.\n" + "InnoTrans 16 Reinigung FGSUED O-240 Vorr./Tägl.\n" + "InnoTrans 16 Reinigung FGSUED O_240 Vorr./Tägl.\n" + "InnoTrans 16 Reinigung FGSUED Ost/240 Vorr./Tägl.\n" + "InnoTrans 16 Reinigung FGSUED T10/47 Reinigung nach Stundennachweis\n" + "InnoTrans 16 Reinigung FGSUED T10-47 Reinigung nach Stundennachweis\n" + "InnoTrans 16 Reinigung FGSUED T10_47 Reinigung nach Stundennachweis\n" + "Inno 16 - Storno H.22_808\n" + "trans 4.1-412 vor u tä\n" + "innotrans 16 reinig tä 21.-205\n" + "Inno 16 - Storno H. 22-808\n" + "Inno 16 - Storno H.22_808b\n" + "Inno 16 - Storno H. 22-808b\n" + "Inno 16 - Storno H.22_808\n" + "Inno 16 - Storno H.2.1_808\n" + "Inno 16 - Storno H.2.1_s808\n" + "Inno 16 - Storno H.2.1-S808\n" + "Inno 16 - Storno halle2.1_stand808\n" + "Inno 16 - Storno Halle2.1_Stand808\n" + "Inno 16 - Storno H2.1 S808\n" + "Inno 16 - Storno halle 2.1 stand 808\n" + "Inno 16 - Storno h2.1 s808\n" + "trans 4.1 412 vor u tä\n" + "innotrans 16 reinig tä 21. 205"; 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