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

r"
"
g

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 = " · ?(.*)"; final String string = "\n" + "ТРК CITY MALL\n" + "Zaporizhzhia, Zaporizhia Oblast · 050 463 9113\n" + "Shopping Center Ukraine\n\n" + "# it's being captured as well\n" + "تطوان، المغرب · +212 669-599239\n" + "طنجة، المغرب · +212 5393-01148\n" + "طنجة، المغرب · +212 679-897627\n\n" + "Coffeyville, KS · (620) 251-3330\n" + "Independence, KS · (620) 331-7177\n" + "Bartlesville, OK · (918) 333-6060\n\n" + "Carrefour Guéret\n" + "Centre Commercial Auchan Domérat\n" + "Saint-Victor · 04 70 28 00 16\n\n" + "ТРК Сіті Мол\n" + "Запоріжжя, Запорізька область · 050 463 9113\n" + "Дніпро, Дніпропетровська область · 050 463 9114\n\n" + "Mühlhausen/Thüringen · 03601 815390\n" + "Nordhausen · 03631 600294\n" + "Laucha · 03622 900140\n\n" + "CinecittàDue\n" + "Roma RM · 06 8746 5219\n" + "Roma RM · 06 8746 2321\n\n" + "長野県上田市 · 0268-28-4551\n" + "長野県上田市 · 0268-42-1482\n" + "長野県松本市 · 0263-36-5258\n\n" + "Langham Place\n" + "Mong Kok · 2393 4246\n" + "Mong Kok · 2396 2415\n\n\n" + "Pärnu, Pärnu maakond · 522 6113\n" + "Rocca Al Mare Parking\n" + "Tallinn · 5561 7011\n\n" + "Silkeborg · 86 81 41 11\n" + "Viborg · 22 40 77 75\n" + "Viborg · 86 69 68 95\n\n" + "Pardubice · 724 372 891\n" + "Pardubice · 725 878 984\n" + "Osice · 725 752 422\n"; 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