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

/
/
gm

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 = "^[\\p{Cyrillic}0-9\\s-#$%^&\\\\]+$"; final String string = "1 Май\n" + "-\n" + "Май 25\\5\n" + "Ӑ ӑ\n" + "Ӓ ӓ\n" + "Ә ә\n" + "Ӛ ӛ\n" + "Ӕ ӕ\n" + "Б б\n" + "В в\n" + "Г г\n" + "Ґ ґ\n" + "Ѓ ѓ\n" + "Ғ ғ\n" + "Ӷ ӷ\n" + "Ҕ ҕ\n" + "Д д\n" + "Ђ ђ\n" + "Е е\n" + "Ѐ ѐ\n" + "Ё ё\n" + "Ӗ ӗ\n" + "Ҽ ҽ\n" + "Ҿ ҿ\n" + "Є є\n" + "Ж ж\n" + "Ӂ ӂ\n" + "Җ җ\n" + "Ӝ ӝ\n" + "З з\n" + "З́ з́\n" + "Ҙ ҙ\n" + "Ӟ ӟ\n" + "Ӡ ӡ\n" + "Ѕ ѕ\n" + "И и\n" + "Ѝ ѝ\n" + "Ӥ ӥ\n" + "Ӣ ӣ\n" + "І і \n" + "Ї ї\n" + "Ӏ ӏ\n" + "Й й\n" + "Ҋ ҋ\n" + "Ј ј\n" + "К к\n" + "Қ қ\n" + "Ҟ ҟ\n" + "Ҡ ҡ\n" + "Ӄ ӄ\n" + "Ҝ ҝ\n" + "Л л\n" + "Ӆ ӆ\n" + "Љ љ\n" + "М м\n" + "Ӎ ӎ\n" + "Н н\n" + "Ӊ ӊ\n" + "Ң ң\n" + "Ӈ ӈ\n" + "Ҥ ҥ\n" + "Њ њ\n" + "О о\n" + "Ӧ ӧ\n" + "Ө ө\n" + "Ӫ ӫ\n" + "Ҩ ҩ\n" + "П п\n" + "Ҧ ҧ\n" + "Р р\n" + "Ҏ ҏ\n" + "С с\n" + "С́ с́\n" + "Ҫ ҫ\n" + "Т т\n" + "Ҭ ҭ\n" + "Ћ ћ\n" + "Ќ ќ\n" + "У у\n" + "Ў ў \n" + "Ӳ ӳ\n" + "Ӱ ӱ\n" + "Ӯ ӯ\n" + "Ү ү\n" + "Ұ ұ\n" + "Ф ф\n" + "Х х\n" + "Ҳ ҳ\n" + "Һ һ\n" + "Ц ц\n" + "Ҵ ҵ\n" + "Ч ч\n" + "Ӵ ӵ\n" + "Ҷ ҷ\n" + "Ӌ ӌ\n" + "Ҹ ҹ\n" + "Џ џ\n" + "Ш ш\n" + "Щ щ\n" + "Ъ ъ\n" + "Ы ы\n" + "Ӹ ӹ\n" + "Ь ь\n" + "Ҍ ҍ\n" + "Э э\n" + "Ӭ ӭ\n" + "Ю ю\n" + "Я я\n" + "abcdefgh\n" + "012344"; 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