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

/
/
gm

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 = "\\s*\\([^()]+\\)$"; final String string = "Data/3d/Maps/28_rock_rc/SpeedTree/palms/images/palm_trunk.dx11.dds.dvpl (80.79 KiB)\n" + "Data/3d/Maps/28_rock_rc/stones/images/karelia_tiletex_blue.dx11.dds.dvpl (595.11 KiB)\n" + "Data/3d/Maps/28_rock_rc/stones/images/karelia_tiletex_blue.tex.dvpl (42 B)\n" + "Data/3d/Maps/29_skit_sk/work\n" + "Data/3d/Maps/29_skit_sk/work/images\n" + "Data/3d/Maps/29_skit_sk/work/images/yamato_01.dx11.dds.dvpl (153.60 KiB)\n" + "Data/3d/Maps/29_skit_sk/work/images/yamato_01.tex.dvpl (42 B)\n" + "Data/3d/Maps/29_skit_sk/work/images/yamato_02.dx11.dds.dvpl (145.80 KiB)\n" + "Data/3d/Maps/29_skit_sk/work/images/yamato_02.tex.dvpl (42 B)\n" + "Data/3d/Maps/34_forgecity_fc/buildings/images/bld_metlife.dx11.dds.dvpl (507.31 KiB)\n" + "Data/3d/Maps/34_forgecity_fc/buildings/images/bld_tower_plant.dx11.dds.dvpl (164.39 KiB)\n" + "Data/3d/Maps/34_forgecity_fc/buildings/images/build_1.dx11.dds.html (586.68 KiB)\n" + "Data/3d/Maps/34_forgecity_fc/buildings/images/build_2.dx11.dds.txt (145.84 KiB)\n" + "Data/3d/Maps/34_forgecity_fc/buildings/images/build_3.dx11.dds.gif (152.02 KiB)\n" + "Data/3d/Maps/34_forgecity_fc/buildings/images/build_4.dx11.dds.dvpl (148.57 KiB)\n" + "Data/3d/Maps/34_forgecity_fc/buildings/images/chrysler_building.dx11.dds.dvpl (515.44 KiB)\n" + "Data/3d/Maps/34_forgecity_fc/landscape/grass/forgecity_GrassMap.dx11.dds.dvpl (184.37 KiB)\n" + "Data/3d/Maps/hangar_prem_2018_birthday_6\n" + "Data/3d/Maps/hangar_prem_2018_birthday_6/birthday_5"; final String subst = ""; final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE); final Matcher matcher = pattern.matcher(string); // The substituted value will be contained in the result variable final String result = matcher.replaceAll(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