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"
"
gum

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 = "(?:^|\\s)(((?:\\+|0{2})(?:49|43|33)[-\\. ]?|0)([1-9]\\d{1,2}[-\\. ]?|\\([1-9]\\d{1,2}\\)[-\\. ]?)(\\d{6,9}|\\d{2,3}[-\\. ]\\d{4,6}))"; final String string = "+33 100 000 0000\n" + "000-000-0000\n" + "000 000 0000\n" + "000.000.0000\n\n" + "12000-000-000012\n" + "12000 000 000012\n" + "12000.000.000012\n\n" + "0049-000-0000\n" + "000 000 0000\n" + "000.000.0000\n\n\n" + "(000)000-0000\n" + "(000)000 0000\n" + "(000)000.0000\n" + "(000) 000-0000\n" + "(000) 000 0000\n" + "(000) 000.0000\n\n" + "12(000)000-000012\n" + "12(000)000 000012\n" + "12(000)000.000012\n" + "12(000) 000-000012\n" + "12(000) 000 000012\n" + "12(000) 000.000012\n\n" + "000-0000\n" + "000 0000\n" + "000.0000\n" + "0000000\n" + "(100)0000000\n\n" + "12000-000012\n" + "12000 000012\n" + "12000.000012\n" + "12000000012\n" + "12(000)000000012\n\n" + "+28 100 000 0000\n" + "+33 000 000 0000\n" + "+33 100 000 0000\n" + "+49 100 000 0000\n" + "+43 100 000 0000\n" + "+43.100.000.0000\n" + "+43-100-000-0000\n" + "+43 100 000 0000\n" + "+43.100.000.0000\n" + "+43-100-000-0000\n" + "+433 100 000 0000\n" + "+433.100.000.0000\n" + "+433-100-000-0000\n" + "+433000000000\n" + "0043 1000000000\n" + "0043 100000000000023\n" + "0043 100000\n" + "0043 100000000\n" + "0043 100 00 00000\n" + "0043 100 000 0000\n" + "0043-100-000-0000\n" + "00431000000000\n" + "0000-000-000-0000\n" + "00000000000000\n" + "+43 (100)000 0000\n" + "0043 (100)000-0000\n" + "0043(100)000-0000\n" + "0000 (100)000-0000\n" + "0000(100)000-0000\n" + "+43 (100) 000 0000\n" + "0043 (100) 000-0000\n" + "0043(100) 000-0000\n" + "0000 (100) 000-0000\n" + "0000(100) 000-0000\n" + "+43 (10)000 0000\n" + "0043 (10)000-0000\n" + "0043(10)000-0000\n" + "0000 (10)000-0000\n" + "0000(10)000-0000\n" + "+43 (10) 000 0000\n" + "0043 (10) 000-0000\n" + "0043(10) 000-0000\n" + "0000 (10) 000-0000\n" + "0000(10) 000-0000\n\n" + "0662 874278\n" + "0676 7359567\n\n" + "0343545435343\n\n" + "06700000023\n\n" + "12+43 100 000 000012\n" + "12+43.100.000.000012\n" + "12+43-100-000-000012\n" + "12+43100000000012\n" + "120043 100000000012\n" + "120043-100-000-000012\n" + "120043100000000012\n" + "12+43 (100)000 000012\n" + "120043 (100)000-000012\n" + "120043(100)000-000012\n\n" + "+49 10 000000\n" + "(000) 0000-0000\n" + "(0000) 0000-0000\n" + "(00000) 000-0000\n" + "(030000) 00-0000\n" + "01200-0000000\n" + "0137-000 0000000\n" + "01500-0000000\n" + "0160-0000000\n" + "0170-0000000\n" + "032-000000000\n" + "0700-0000000\n" + "0800-0000000\n" + "0900-0-000000\n\n\n\n" + "0000000000000\n" + "0000000000000\n\n" + "120000000000000\n" + "120000000000000\n\n" + "+00+00 000 0000\n\n" + "2013 175000km\n" + "019 55000km"; final Pattern pattern = Pattern.compile(regex, Pattern.UNICODE_CASE | Pattern.MULTILINE); 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