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
  • Match everything enclosed
    (?:...)
  • Capture everything enclosed
    (...)
  • 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

/
/
gis

Test String

Code Generator

Generated Code

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "^(?:[[:^print:][:cntrl:]\\s]|GIF89.{0,20})*<\\?(?:php)?\\s*\\$yourmail\\s*=.{0,40}?put your e-mail here.{0,190}?scam[\\s\\w]+by\\s*walid\\s*nabil.{0,70}?facebook\\.com\\/oreo0o.{0,50}?walid_nabil(?:[^>]+>\\s*)?$"; final String string = "<?php\n" + "$yourmail = 'Tuto42@yahoo.com'; // PUT YOUR E-MAIL HERE\n\n" + "//To Open This Page : domain.com/?wal=mart\n\n" + "/*\n" + "$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$\n" + "$ $\n" + "$ THIS SCAM WAS CREATED BY Walid Nabil (OREOO) $\n" + "$ FB:https://www.facebook.com/OReo0o $\n" + "$ ICQ:https://icq.im/Walid_Nabil $\n" + "$ 2020 $\n" + "$ $\n" + "$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$\n\n" + " .----------------. .----------------. .----------------. .----------------. .----------------. .----------------. \n" + "| .--------------. || .--------------. || .--------------. || .--------------. || .--------------. || .--------------. |\n" + "| | ____ | || | _______ | || | _________ | || | ____ | || | ____ | || | ____ | |\n" + "| | .' `. | || | |_ __ \\ | || | |_ ___ | | || | .' `. | || | .' `. | || | .' `. | |\n" + "| | / .--. \\ | || | | |__) | | || | | |_ \\_| | || | / .--. \\ | || | / .--. \\ | || | / .--. \\ | |\n" + "| | | | | | | || | | __ / | || | | _| _ | || | | | | | | || | | | | | | || | | | | | | |\n" + "| | \\ `--' / | || | _| | \\ \\_ | || | _| |___/ | | || | \\ `--' / | || | \\ `--' / | || | \\ `--' / | |\n" + "| | `.____.' | || | |____| |___| | || | |_________| | || | `.____.' | || | `.____.' | || | `.____.' | |\n" + "| | | || | | || | | || | | || | | || | | |\n" + "| '--------------' || '--------------' || '--------------' || '--------------' || '--------------' || '--------------' |\n" + " '----------------' '----------------' '----------------' '----------------' '----------------' '----------------' \n" + "*/\n" + "?>\n"; final Pattern pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE | Pattern.DOTALL); 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