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 = "(?<=\\D{3}.\\d{2}.\\d{4}).*(?<=\\D)"; final String string = "Ｉ Ｎ Ｖ Ｏ Ｉ Ｃ Ｅ **** JUL.19,2022\n" + "Ｄ Ａ Ｔ Ｅ ：\n" + "1-21, SHIBAURA 3-CHOME,MINATO-KU,TOKYO, JAPAN\n" + "NN390\n" + "ＩＮＶＯＩＣＥ　ＮＯ．\n" + "MITSUBISHI MOTORS AUSTRALIA LIMITED.\n" + "1 SIR RICHARD WILLIAMS AVENUE,\n" + "ADELAIDE AIRPORT SA 5950 AUSTRALIA\n" + "ＮＡＭＥ　ＯＦ　ＶＥＳＳＥＬ ＯＮ　ＯＲ　ＡＢＯＵＴ ＬＯＡＤＩＮＧ　ＰＯＲＴ\n" + "OOCL NEW ZEALAND 115S JUL.30,2022 NAGOYA,JAPAN\n" + "ＤＩＳＣＨＡＲＧＩＮＧ　ＰＯＲＴ ＩＮＳＵＲＡＮＣＥ\n" + "FREMANTLE,AUSTRALIA\n" + "COVERED BY SHIPPER\n" + "ＰＡＹＭＥＮＴ　ＴＥＲＭＳ\n" + "REMITTANCE AT 45 DAYS AFTER B/L DATE\n" + "ＭＡＲＫ　＆　ＮＯＳ ＤＥＳＣＲＩＰＴＩＯＮ ＱＵＡＮＴＩＴＹ ＵＮＩＴ　ＰＲＩＣＥ ＡＭＯＵＮＴ\n" + "-AS PER SPARE PARTS FOR\n" + "ATTACHED SHEET- MITSUBISHI VEHICLES\n" + "PCS AUS.DOLLARS\n" + "*** ***********\n" + "FOB NET 2,553 75,622.32*\n" + "PACKING CHARGE 529.36*\n" + "FOB NAGOYA JAPAN 76,151.68*\n" + "INSURANCE 380.76*\n" + "C&I FREMANTLE 76,532.44*\n" + "**********\n" + "\"WE DECLARE THAT THE MACHINERY AND/OR PARTS AND\n" + "ACCESSORIES ARE NEW AND UNUSED AND HAVE NOT BEEN FIELD\n" + "TESTED OR FACTORY TRIALLED\"\n" + "PACKING LIST\n" + "LOT NO C/S NO GROSS WT NET WT M/M\n" + "MASAYUKI SHIBUYA GENERAL MANAGER\n" + "GLOBAL AFTER SALES LOGISTICS DEPARTMENT\n" + "GLOBAL AFTER SALES DIVISION\n" + "MITSUBISHI MOTORS CORPORATION\n" + "ＡＶ ０\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