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
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 = "(?=\\d{2,3}9\\d+)(?<!\\d)(\\d{11,12})(?!\\d)|(?<!\\d)(\\d{2}\\s\\d{5}\\s\\d{4})(?!\\d)|(?<!\\d)(0\\d{2}\\s\\d{5}\\s\\d{4})(?!\\d)|(?<!\\d)(\\d{2}\\s9\\s\\d{4}\\s\\d{4})(?!\\d)|(?<!\\d)(0\\d{2}\\s9\\s\\d{4}\\s\\d{4})(?!\\d)|(?<!\\d)(\\d{9})(?!\\d)|(?<!\\d)(\\d\\s\\d{8})(?!\\d)|(?<!\\d)(\\(\\d{2}\\)\\d{9})(?!\\d)|(?<!\\d)(\\(0\\d{2}\\)\\d{9})(?!\\d)|(?<!\\d)(\\(\\d{2}\\)\\d{1}\\s\\d{4}\\s\\d{4})(?!\\d)|(?<!\\d)(\\(0\\d{2}\\)\\d{1}\\s\\d{4}\\s\\d{4})(?!\\d)|(?<!\\d)(\\(\\d{2}\\)\\s\\d{1}\\s\\d{4}\\s\\d{4})(?!\\d)|(?<!\\d)(\\(0\\d{2}\\)\\s\\d{1}\\s\\d{4}\\s\\d{4})(?!\\d)"; final String string = "---> DEVE ENCONTRAR:\n" + "11991234567 // /¯¯¯¯¯\n" + "011991234567 // | (?=\\d{2,3}9\\d+)(?<!\\d)(\\d{11,12})(?!\\d)\n" + "119111111111 // \\_____\n" + "11 99123 4567 // (?<!\\d)(\\d{2}\\s\\d{5}\\s\\d{4})(?!\\d)\n" + "011 99123 4567 // (?<!\\d)(0\\d{2}\\s\\d{5}\\s\\d{4})(?!\\d)\n" + "11 9 9123 4567 // (?<!\\d)(\\d{2}\\s9\\s\\d{4}\\s\\d{4})(?!\\d)\n" + "011 9 9123 4567 // (?<!\\d)(0\\d{2}\\s9\\s\\d{4}\\s\\d{4})(?!\\d)\n\n" + "---> DEVE ENCONTRAR (EXEMPLOS DA PERGUNTA + ALGUMAS EXTENSÕES):\n" + "993345987 // (?<!\\d)(\\d{9})(?!\\d)\n" + "9 93345987 // (?<!\\d)(\\d\\s\\d{8})(?!\\d)\n" + "(21)932324343 // (?<!\\d)(\\(\\d{2}\\)\\d{9})(?!\\d) ## OU: (?<!\\d)(\\d{9})(?!\\d)\n" + "(021)932324343 // (?<!\\d)(\\(0\\d{2}\\)\\d{9})(?!\\d) ## OU: (?<!\\d)(\\d{9})(?!\\d)\n" + "(21)9 3232 4343 // (?<!\\d)(\\(\\d{2}\\)\\d{1}\\s\\d{4}\\s\\d{4})(?!\\d)\n" + "(021)9 3232 4343 // (?<!\\d)(\\(0\\d{2}\\)\\d{1}\\s\\d{4}\\s\\d{4})(?!\\d)\n" + "(21) 9 3232 4343 // (?<!\\d)(\\(\\d{2}\\)\\s\\d{1}\\s\\d{4}\\s\\d{4})(?!\\d)\n" + "(021) 9 3232 4343 // (?<!\\d)(\\(0\\d{2}\\)\\s\\d{1}\\s\\d{4}\\s\\d{4})(?!\\d)\n\n\n" + "NÃO DEVE ENCONTRAR:\n" + "11 99123 45671\n" + "111 99123 4567\n" + "011 99123 45678\n" + "811 99123 45678\n" + "a9999999999999999999989999123\n" + "118111111111\n" + "123456789123456789\n"; final Pattern pattern = Pattern.compile(regex, 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