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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]
  • Character class intersection
    [\w&&[^\d]]
  • 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

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 = "\\[([A-G][#b]?(maj|m)?[27]?(add|aug|dim|sus)?[2-9]?)\\]"; final String string = "[Am7], [C6]\n" + "[C7]\n" + "[Cmaj7]\n" + "[C]\n" + "[Fadd9]\n" + "[C7sus4]\n" + "[Csus4], [Fsus2]\n" + "[A7]\n" + "[Edim]\n" + "[A9], [Em6]\n" + "[Dbdim]\n" + "[Eb9]\n" + "[Gdim]\n" + "[A7sus4]\n" + "[C9], [Gm6]\n" + "[Em7], [G6]\n" + "[Bb6], [Gm7]\n" + "[G7]\n" + "[G7sus4]\n" + "[Gmaj7]\n" + "[Dsus4], [Gsus2]\n" + "[Gm]\n" + "[G]\n" + "[Csus2], [Gsus4]\n" + "[Ebadd9]\n" + "[Eb]\n" + "[Ebaug], [Gaug]\n" + "[Cm]\n" + "[Em9]\n" + "[Cadd9]\n" + "[Abaug], [Caug], [Eaug]\n" + "[Fm]\n" + "[Amaj7]\n" + "[Dbm6], [Gb9]\n" + "[Dbm7]\n" + "[Bbm7], [Db6]\n" + "[Db7]\n" + "[Db]\n" + "[Gbadd9]\n" + "[Gbsus2]\n" + "[E7]\n" + "[Bb7]\n" + "[Abdim], [Fdim]\n" + "[Fm6]\n" + "[Gbm9]\n" + "[Bm6], [E9]\n" + "[Emaj7]\n" + "[Dbm9]\n" + "[Bb7sus4]\n" + "[Db9]\n" + "[Ab6], [Fm7]\n" + "[Dbadd9]\n" + "[Abm7], [B6]\n" + "[Ab7]\n" + "[Ab7sus4]\n" + "[Abmaj7]\n" + "[Absus2]\n" + "[Absus4]\n" + "[E]\n" + "[Eadd9]\n" + "[Am]\n" + "[Am9]\n" + "[F]\n" + "[Am6]\n" + "[A]\n" + "[Aadd9], [Bm9]\n" + "[Dbaug], [Faug]\n" + "[Aaug]\n" + "[A6], [Gbm]\n" + "[Gbm6]\n" + "[Asus4], [Dsus2]\n" + "[Dm]\n" + "[Dm6], [G9]\n" + "[Dm7], [F6]\n" + "[D]\n" + "[Bm7], [D6]\n" + "[D7]\n" + "[Dmaj7]\n" + "[Gm9]\n" + "[D7sus4]\n" + "[F7]\n" + "[Ebdim]\n" + "[B7]\n" + "[Adim], [Gbdim]\n" + "[Cm6], [F9]\n" + "[Fmaj7]\n" + "[B7sus4]\n" + "[D9]\n" + "[Gbm7]\n" + "[Bbsus2], [Fsus4]\n" + "[Bbdim]\n" + "[Bbm]\n" + "[Bbm9]\n" + "[Gb]\n" + "[Bbm6]\n" + "[Bbmaj7]\n" + "[Bb]\n" + "[Bbadd9]\n" + "[Bbaug], [Daug], [Gbaug]\n" + "[Bb9]\n" + "[Bbsus4]\n" + "[Ebm]\n" + "[Ab9], [Ebm6]\n" + "[Ebm7], [Gb6]\n" + "[Cm7], [Eb6]\n" + "[Eb7]\n" + "[Abadd9]\n" + "[Ebsus2]\n" + "[Gb7]\n" + "[Bsus2], [Gbsus4]\n" + "[Bdim]\n" + "[Bm]\n" + "[Bmaj7]\n" + "[B]\n" + "[Badd9]\n" + "[Baug]\n" + "[Abm]\n" + "[Bsus4], [Esus2]\n" + "[E6]"; final Pattern pattern = Pattern.compile(regex); 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