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"
"
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 = "(Заявка на забор документов)\\n(Имя - )(.*)\\n(Фамилия - )(.*)\\n(E-mail - )(.*)\\n(Мобильный телефон - )(.*)\\n(Улица - )(.*)\\n(Дом - )(.*)\\n(Корпус - )(.*)\\n(Строение - )(.*)\\n(Квартира - )(.*)\\n(Время забора документов - )(.*)\\n(Комментарий - )(.*)"; final String string = "Заявка на забор документов\n" + "Имя - Владимир\n" + "Фамилия - Симигин\n" + "E-mail - v.simigin@gmail.com\n" + "Мобильный телефон - +79141861116\n" + "Улица - Большая Черемушкинская\n" + "Дом - 20\n" + "Корпус - 1\n" + "Строение - \n" + "Квартира - 34\n" + "Время забора документов - 13:00 - 16:00\n" + "Комментарий - Код домофона 39ключ7289"; final String subst = "\\1,\\3,\\5,\\7,\\9,\\11,\\13,\\15,\\17,\\19,\\21,\\23"; 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