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]
  • 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 = "\"(?<email>[^\"@]+@[^\"]+)\""; final String string = "{\n" + " \"data\": [\n" + " {\n" + " \"einsatzId\": \"0016a0ea-f5db-4e1d-9c87-cc616111aec1\",\n" + " \"einsatzProjektId\": \"87a7143b-a4b7-4dd9-bbdc-5d32fb42bea3\",\n" + " \"einsatzJobId\": \"2c5e540b-5d19-4779-9d0f-ea2a9c1bf5dd\",\n" + " \"einsatzTerminId\": \"60262a68-8dd8-4bf2-baaa-a8d02740ac56\",\n" + " \"einsatzProfilId\": \"1f139fa6-d14c-4f0c-84df-ff1e81cecd5d\",\n" + " \"einsatzEinsatzstatus\": \"Einsatz wurde gebucht\",\n" + " \"einsatzCheckIn\": \"10:55\",\n" + " \"einsatzCheckOut\": \"19:17\",\n" + " \"einsatzKategorien\": \"\",\n" + " \"profil\": {\n" + " \"profilId\": \"1f139fa6-d14c-4f0c-84df-ff1e81cecd5d\",\n" + " \"profilPersonalnummer\": \"47594\",\n" + " \"profilStatus\": \"aktiv\",\n" + " \"profilEmail\": \"xxx@gmail.com\"\n" + " }\n" + " },\n" + " {\n" + " \"einsatzId\": \"00251e08-245b-44c3-9660-6e0c10fa4f8d\",\n" + " \"einsatzProjektId\": \"a985aa5f-8658-4887-b629-174289e5c489\",\n" + " \"einsatzJobId\": \"9ae9147a-b74a-4cf1-952d-7d45dc6a22d8\",\n" + " \"einsatzTerminId\": \"a0b9a0d0-baae-4548-b4f2-76ddbfc66f35\",\n" + " \"einsatzProfilId\": \"bdc601b9-997b-48a2-91c2-b93a3e95988c\",\n" + " \"einsatzEinsatzstatus\": \"Einsatz wurde gebucht\",\n" + " \"einsatzCheckIn\": \"14:48\",\n" + " \"einsatzCheckOut\": \"21:03\",\n" + " \"einsatzKategorien\": \"\",\n" + " \"profil\": {\n" + " \"profilId\": \"bdc601b9-997b-48a2-91c2-b93a3e95988c\",\n" + " \"profilPersonalnummer\": \"84595\",\n" + " \"profilStatus\": \"aktiv\",\n" + " \"profilEmail\": \"xxx@xxx.koeln\"\n" + " }\n" + " },\n" + " {\n" + " \"einsatzId\": \"002926ab-d9dd-43bc-899a-36b4593b197a\",\n" + " \"einsatzProjektId\": \"e4d16ffd-34b4-471d-9de1-aae50b8a522d\",\n" + " \"einsatzJobId\": \"d65efcd0-9f51-465c-b5e1-cf4ba90ee5de\",\n" + " \"einsatzTerminId\": \"57574589-fa24-421a-a1b6-d193defe32ae\",\n" + " \"einsatzProfilId\": \"329fb255-45af-4d31-87b8-94c6dff46675\",\n" + " \"einsatzEinsatzstatus\": \"Einsatz wurde gebucht\",\n" + " \"einsatzCheckIn\": null,\n" + " \"einsatzCheckOut\": null,\n" + " \"einsatzKategorien\": \"Abr. Einsatzstundennachweis überprüft\",\n" + " \"profil\": {\n" + " \"profilId\": \"329fb255-45af-4d31-87b8-94c6dff46675\",\n" + " \"profilPersonalnummer\": \"90809\",\n" + " \"profilStatus\": \"aktiv\",\n" + " \"profilEmail\": \"xxx@gmail.com\"\n" + " }\n" + " },\n" + " {\n" + " \"einsatzId\": \"00c77ce3-ce53-4010-9711-95f6fb152dcb\",\n" + " \"einsatzProjektId\": \"e4d16ffd-34b4-471d-9de1-aae50b8a522d\",\n" + " \"einsatzJobId\": \"eaa4bf78-e17e-43ae-9bdf-d4aac355b3fa\",\n" + " \"einsatzTerminId\": \"94ee0261-17ce-422a-b9db-a774eff447a0\",\n" + " \"einsatzProfilId\": \"329fb255-45af-4d31-87b8-94c6dff46675\",\n" + " \"einsatzEinsatzstatus\": \"Einsatz wurde gebucht\",\n" + " \"einsatzCheckIn\": \"10:49\",\n" + " \"einsatzCheckOut\": \"18:00\",\n" + " \"einsatzKategorien\": \"Abr. Einsatzstundennachweis überprüft\",\n" + " \"profil\": {\n" + " \"profilId\": \"329fb255-45af-4d31-87b8-94c6dff46675\",\n" + " \"profilPersonalnummer\": \"90809\",\n" + " \"profilStatus\": \"aktiv\",\n" + " \"profilEmail\": \"xxx@gmail.com\"\n" + " }\n" + " },\n" + " {\n" + " \"einsatzId\": \"00e254cc-a1c9-4bb7-b82f-fb7f2abd9a9a\",\n" + " \"einsatzProjektId\": \"e4d16ffd-34b4-471d-9de1-aae50b8a522d\",\n" + " \"einsatzJobId\": \"eaa4bf78-e17e-43ae-9bdf-d4aac355b3fa\",\n" + " \"einsatzTerminId\": \"9b6e3597-2c15-4ae5-9b94-4d1ac9d1dd2f\",\n" + " \"einsatzProfilId\": \"9d3ffa9b-bcb4-4986-a962-431e67a4a176\",\n" + " \"einsatzEinsatzstatus\": \"Einsatz wurde gebucht\",\n" + " \"einsatzCheckIn\": \"11:02\",\n" + " \"einsatzCheckOut\": \"18:06\",\n" + " \"einsatzKategorien\": \"\",\n" + " \"profil\": {\n" + " \"profilId\": \"9d3ffa9b-bcb4-4986-a962-431e67a4a176\",\n" + " \"profilPersonalnummer\": \"61408\",\n" + " \"profilStatus\": \"aktiv\",\n" + " \"profilEmail\": \"xxx@gmail.com\"\n" + " }\n" + " },\n" + " {\n" + " \"einsatzId\": \"014b125f-8917-41c2-9454-5067bd0bb602\",\n" + " \"einsatzProjektId\": \"01d15006-4de2-4b16-b736-86732fa5f893\",\n" + " \"einsatzJobId\": \"5d444443-e727-4ca5-9deb-b9a313b14335\",\n" + " \"einsatzTerminId\": \"252b9bb8-dea3-47aa-b7d4-a9517bb16f46\",\n" + " \"einsatzProfilId\": \"5b90bf1d-40c6-4f78-947b-a496cb3a4d31\",\n" + " \"einsatzEinsatzstatus\": \"Einsatz wurde gebucht\",\n" + " \"einsatzCheckIn\": \"14:41\",\n" + " \"einsatzCheckOut\": \"21:10\",\n" + " \"einsatzKategorien\": \"\",\n" + " \"profil\": {\n" + " \"profilId\": \"5b90bf1d-40c6-4f78-947b-a496cb3a4d31\",\n" + " \"profilPersonalnummer\": \"83465\",\n" + " \"profilStatus\": \"aktiv\",\n" + " \"profilEmail\": \"mwipplinger99@gmail.com\"\n" + " }\n" + " },\n" + " {\n" + " \"einsatzId\": \"019d7918-294c-4b95-a1ba-cd6c332569cf\",\n" + " \"einsatzProjektId\": \"87a7143b-a4b7-4dd9-bbdc-5d32fb42bea3\",\n" + " \"einsatzJobId\": \"f2e232d1-22af-432d-9220-b3e683d0628a\",\n" + " \"einsatzTerminId\": \"2e0b23c1-e9f5-4b13-aa42-86b4476b2ce2\",\n" + " \"einsatzProfilId\": \"1ddd2f87-84e9-4128-832a-98e990f100a6\",\n" + " \"einsatzEinsatzstatus\": \"Einsatz wurde gebucht\",\n" + " \"einsatzCheckIn\": \"10:11\",\n" + " \"einsatzCheckOut\": \"19:12\",\n" + " \"einsatzKategorien\": \"\",\n" + " \"profil\": {\n" + " \"profilId\": \"1ddd2f87-84e9-4128-832a-98e990f100a6\",\n" + " \"profilPersonalnummer\": \"51669\",\n" + " \"profilStatus\": \"aktiv\",\n" + " \"profilEmail\": \"adxxx@gmx.de\"\n" + " }\n" + " },\n" + " {\n" + " \"einsatzId\": \"01e894c7-cf61-47b7-8511-baff1c9e31f5\",\n" + " \"einsatzProjektId\": \"e4d16ffd-34b4-471d-9de1-aae50b8a522d\",\n" + " \"einsatzJobId\": \"eaa4bf78-e17e-43ae-9bdf-d4aac355b3fa\",\n" + " \"einsatzTerminId\": \"25175bf9-9969-4c57-acac-73c2c975b98f\",\n" + " \"einsatzProfilId\": \"730d75cd-9f92-4d11-8c77-977c586a53ec\",\n" + " \"einsatzEinsatzstatus\": \"Einsatz wurde gebucht\",\n" + " \"einsatzCheckIn\": \"10:53\",\n" + " \"einsatzCheckOut\": \"18:10\",\n" + " \"einsatzKategorien\": \"\",\n" + " \"profil\": {\n" + " \"profilId\": \"730d75cd-9f92-4d11-8c77-977c586a53ec\",\n" + " \"profilPersonalnummer\": \"87801\",\n" + " \"profilStatus\": \"aktiv\",\n" + " \"profilEmail\": \"xxx@gmx.de\"\n" + " }\n" + " },\n" + " {\n" + " \"einsatzId\": \"01ebf0d0-7564-4f27-bcfc-c7b0714db028\",\n" + " \"einsatzProjektId\": \"a985aa5f-8658-4887-b629-174289e5c489\",\n" + " \"einsatzJobId\": \"9ae9147a-b74a-4cf1-952d-7d45dc6a22d8\",\n" + " \"einsatzTerminId\": \"8a42f4e6-7695-4a81-a449-bdfde63bd6f5\",\n" + " \"einsatzProfilId\": \"ee3c9879-d3c5-4495-957d-41cb6da8ea8c\",\n" + " \"einsatzEinsatzstatus\": \"Einsatz wurde gebucht\",\n" + " \"einsatzCheckIn\": \"06:39\",\n" + " \"einsatzCheckOut\": \"13:04\",\n" + " \"einsatzKategorien\": \"\",\n" + " \"profil\": {\n" + " \"profilId\": \"ee3c9879-d3c5-4495-957d-41cb6da8ea8c\",\n" + " \"profilPersonalnummer\": \"91934\",\n" + " \"profilStatus\": \"aktiv\",\n" + " \"profilEmail\": \"xxx@xxx.de\"\n" + " }\n" + " },\n" + " {\n" + " \"einsatzId\": \"029fc0be-6138-40ae-a664-bf189ab152f3\",\n" + " \"einsatzProjektId\": \"01d15006-4de2-4b16-b736-86732fa5f893\",\n" + " \"einsatzJobId\": \"5d444443-e727-4ca5-9deb-b9a313b14335\",\n" + " \"einsatzTerminId\": \"075eedb6-a3c6-49bc-b57e-5a02c0777aa8\",\n" + " \"einsatzProfilId\": \"189eaea2-996f-4d62-91e2-ebcc2341328b\",\n" + " \"einsatzEinsatzstatus\": \"Einsatz wurde gebucht\",\n" + " \"einsatzCheckIn\": \"14:54\",\n" + " \"einsatzCheckOut\": \"20:59\",\n" + " \"einsatzKategorien\": \"\",\n" + " \"profil\": {\n" + " \"profilId\": \"189eaea2-996f-4d62-91e2-ebcc2341328b\",\n" + " \"profilPersonalnummer\": \"74983\",\n" + " \"profilStatus\": \"aktiv\",\n" + " \"profilEmail\": \"xxx.xxx@gmail.com\"\n" + " }\n" + " }\n" + " ]\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