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

@
@
gs

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 = "<strong>\\s*([\\d.]+)\\s*<small style=\"color:white;\">"; final String string = "\n" + " <div class=\"row\">\n" + " <div class=\"col-xs-12 col-sm-10 col-sm-offset-1 col-md-8 col-md-offset-2\">\n" + " <div>\n" + " <h2 class=\"heading-large\">\n" + " <strong>\n" + " 61312.3 <small style=\"color:white;\">UAH</small>\n" + " </strong>\n" + " <small><span class=\"glyphicon glyphicon-arrow-down text-danger\"></span></small> </h2>\n" + " <br>\n" + " <!--<a href=\"#\" class=\"showRateDetail\" style=\"color:#BFECFF;\">Подробности конвертации <span class=\"caret_blue\"></span></a>-->\n" + " <div>\n" + " <div class=\"col-xs-12\" style=\"margin-left:0px;padding-left:0px;padding-top:10px;\">\n" + " <table class=\"table table-condensed\" style=\"opacity:0.7;\">\n" + " <thead>\n" + " <tr align=\"left\">\n" + " <th>Биржа</th>\n" + " <th>Курс</th>\n" + " <th>Суточный объем</th>\n" + " </tr>\n" + " </thead>\n" + " <tbody>\n" + " <tr align=\"left\">\n" + " <td><a href=\"/exchange/exmo/\" style=\"color:inherit;\">Exmo</a></td>\n" + " <td>61649.99999999</td>\n" + " <td>\n" + " <div class=\"progress\" style=\"opacity:0.6;\"> \n" + " <div class=\"progress-bar progress-bar-info\" role=\"progressbar\" aria-valuenow=\"53.68\" aria-valuemin=\"0\" aria-valuemax=\"100\" style=\"width: 53.68%;\">\n" + " <span style=\"color:#004F70;padding-left:5px;\">17</span>\n" + " </div>\n" + " </div>\n" + " </td>\n" + "</tr><tr align=\"left\">\n" + " <td><a href=\"/exchange/kuna/\" style=\"color:inherit;\">Kuna</a></td>\n" + " <td>60921.00000000</td>\n" + " <td>\n" + " <div class=\"progress\" style=\"opacity:0.6;\"> \n" + " <div class=\"progress-bar progress-bar-info\" role=\"progressbar\" aria-valuenow=\"46.32\" aria-valuemin=\"0\" aria-valuemax=\"100\" style=\"width: 46.32%;\">\n" + " <span style=\"color:#004F70;padding-left:5px;\">15</span>\n" + " </div>\n" + " </div>\n" + " </td>\n" + "</tr> <tr align=\"left\">\n" + " <td colspan=\"2\">\n" + " <b>Общий объем</b>\n" + " </td>\n" + " <td>\n" + " <b>33 BTC</b> \n" + " </td>\n" + " </tr>\n" + " <tbody>\n" + " </table>\n" + " </div>\n" + " </div>\n" + " </div>\n" + " </div>\n" + " </div>\n"; final Pattern pattern = Pattern.compile(regex, 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