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

~
~
gmux

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 = "\\b(?:[BS]/\\.|R(?:D?\\$|p))|\n" + "\\b(?:[TN]T|[CJZ])\\$|Дин\\.|\n" + "\\b(?:Bs|Ft|Gs|K[Mč]|Lek|B[Zr]|k[nr]|[PQLSR]|лв|ден|RM|MT|lei|zł|USD|GBP|EUR|JPY|CHF|SEK|DKK|NOK|SGD|HKD|AUD|TWD|NZD|CNY|KRW|INR|CAD|VEF|EGP|THB|IDR|PKR|MYR|PHP|MXN|VND|CZK|HUF|PLN|TRY|ZAR|ILS|ARS|CLP|BRL|RUB|QAR|AED|COP|PEN|CNH|KWD|SAR)\\b|\n" + "\\$[Ub]|\n" + "[\\p{Sc}ƒ]"; final String string = "Lek\n" + "؋\n" + "$\n" + "ƒ\n" + "$\n" + "₼\n" + "$\n" + "$\n" + "Br\n" + "BZ$\n" + "$\n" + "$b\n" + "KM\n" + "P\n" + "лв\n" + "R$\n" + "$\n" + "៛\n" + "$\n" + "$\n" + "$\n" + "¥\n" + "$\n" + "₡\n" + "kn\n" + "₱\n" + "Kč\n" + "kr\n" + "RD$\n" + "$\n" + "£\n" + "$\n" + "€\n" + "£\n" + "$\n" + "¢\n" + "£\n" + "Q\n" + "£\n" + "$\n" + "L\n" + "$\n" + "Ft\n" + "kr\n\n" + "Rp\n" + "﷼\n" + "£\n" + "₪\n" + "J$\n" + "¥\n" + "£\n" + "лв\n" + "₩\n" + "₩\n" + "лв\n" + "₭\n" + "£\n" + "$\n" + "ден\n" + "RM\n" + "₨\n" + "$\n" + "₮\n" + "MT\n" + "$\n" + "₨\n" + "ƒ\n" + "$\n" + "C$\n" + "₦\n" + "kr\n" + "﷼\n" + "₨\n" + "B/.\n" + "Gs\n" + "S/.\n" + "₱\n" + "zł\n" + "﷼\n" + "lei\n" + "₽\n" + "£\n" + "﷼\n" + "Дин.\n" + "₨\n" + "$\n" + "$\n" + "S\n" + "R\n" + "₨\n" + "kr\n" + "CHF\n" + "$\n" + "£\n" + "NT$\n" + "฿\n" + "TT$\n\n" + "$\n" + "₴\n" + "£\n" + "$\n" + "$U\n" + "лв\n" + "Bs\n" + "₫\n" + "﷼\n" + "Z$\n"; final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE | Pattern.UNICODE_CASE | Pattern.COMMENTS); 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