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

Substitution

Processing...

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.]+\\s*(x|х)\\s*[\\d.]+\\s*\\/.*ET-?\\d+).*$"; final String string = "1) София 5.5.x13/4x98 ET35\n" + "2) Палладика 7x16/5x139.7 D98 ET5 Алмаз черный \n" + "3) 35TH Anniversary 8x18/5x108 ET27 Black \n" + "4)Уран 6x14/4x108 ET37\n" + "1) NG277 5.5x13/4x100 D73.1 ET38 \n" + "BKF = 5.5x13/4x100 D73.1 ET38\n" + "2) MC7/B 7x17/5x114.3 D70.6 ET54 \n" + "Silver = 7x17/5x114.3 D70.6 ET54\n" + "3) S 7 Modify 7.5x18/5x112 D73 ET42 \n" + "Silver = 7.5x18/5x112 D73 ET42\n" + "4) MK-Course Mod.08 7.5x18/5x100 D56.1 ET55\n" + "5) Fever-5R 8x18/5x120 D74.1 ET15 Black Mirror\n" + "6) R6162 9x20/5x108 D67.1 ET40 S\n" + "7) 35 Anniversary 8x18/5x120 ET34 Black\n" + "8) Lounge 8 & 10 8x18/5x110 D75 ET38 Black\n" + "9) RSL 5068TL 8.5x18/5x112 D71.6 ET40 MLB\n" + "10 Килиманджаро-5-оригинал 6x15/5x114.3 D67.1 ET52.5\n" + "11) RK L31F 6x15/4x100 D54.1 ET48 S\n" + "12 X-113 7x17/5x115 D70.1 ET41 BK/FP\n" + "H-323 8x15/6x139.7 H-323 8x15/6x139.7 D110.5 ET-28 HS \n" + "D/P H-526 7x15/6x139.7 D110.5 ET-13 HS \n" + "LS182 10x15/5x139.7 D108.5 ET-40 BKF \n" + "Талисман-Мега 7х16/5x139.7 D95.3 ET35 \n" + "блэк платинум P0457 8.5 x 20/5x100 D73.1 ET35 \n" + "Chrome 7100 7x16/6x139.7 D112.2 ET-15 Silver"; final String subst = "\\1"; final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE); final Matcher matcher = pattern.matcher(string); // The substituted value will be contained in the result variable final String result = matcher.replaceAll(subst); System.out.println("Substitution result: " + result); } }

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