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
Processing...

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 = "(?<=<).*(?=>)"; final String string = "/+1-541-754-3010 156 Alphand_St. <J Steeve>\n" + " 133, Green, Rd. <E Kustur> NY-56423 ;+1-541-914-3010\n" + "+1-541-984-3012 <P Reed> /PO Box 530; Pollocksville, NC-28573\n" + " :+1-321-512-2222 <Paul Dive> Sequoia Alley PQ-67209\n" + "+1-741-984-3090 <Peter Reedgrave> _Chicago\n" + " :+1-921-333-2222 <Anna Stevens> Haramburu_Street AA-67209\n" + "+1-111-544-8973 <Peter Pan> LA\n" + " +1-921-512-2222 <Wilfrid Stevens> Wild Street AA-67209\n" + "<Peter Gone> LA ?+1-121-544-8974 \n" + " <R Steell> Quora Street AB-47209 +1-481-512-2222\n" + "<Arthur Clarke> San Antonio $+1-121-504-8974 TT-45120\n" + " <Ray Chandler> Teliman Pk. !+1-681-512-2222! AB-47209,\n" + "<Sophia Loren> +1-421-674-8974 Bern TP-46017\n" + " <Peter O'Brien> High Street +1-908-512-2222; CC-47209\n" + "<Anastasia> +48-421-674-8974 Via Quirinal Roma\n" + " <P Salinger> Main Street, +1-098-512-2222, Denver\n" + "<C Powel> *+19-421-674-8974 Chateau des Fosses Strasbourg F-68000\n" + " <Bernard Deltheil> +1-498-512-2222; Mount Av. Eldorado\n" + "+1-099-500-8000 <Peter Crush> Labrador Bd.\n" + " +1-931-512-4855 <William Saurin> Bison Street CQ-23071\n" + "<P Salinge> Main Street, +1-098-512-2222, Denve\n" + "<P Salinge> Main Street, +1-098-512-2222, Denve\n" + "/+5-541-754-3010 156 Alphandria_Street. <Jr Part>\n" + " 1333, Green, Road <F Fulgur> NW-46423 ;+6-541-914-3010!\n" + "+5-541-984-3012 <Peter Reeves> /PO Box 5300; Albertville, SC-28573\n" + " :+5-321-512-2222 <Paulo Divino> Boulder Alley ZQ-87209\n" + "+3-741-984-3090 <F Flanaghan> _Chicago Av.\n" + " :+3-921-333-2222 <Roland Scorsini> Bellevue_Street DA-67209\n" + "+8-111-544-8973 <Laurence Pantow> SA\n" + " +8-921-512-2222 <Raymond Stevenson> Joly Street EE-67209\n" + "<John Freeland> Mantow ?+2-121-544-8974 \n" + " <Robert Mitch> Eleonore Street QB-87209 +2-481-512-2222?\n" + "<Arthur Paternos> San Antonio $+7-121-504-8974 TT-45121\n" + " <Ray Charles> Stevenson Pk. !+7-681-512-2222! CB-47209,\n" + "<JP Gorce> +9-421-674-8974 New-Bern TP-16017\n" + " <P McDon> Revolution Street +2-908-512-2222; PP-47209\n" + "<Elizabeth Corber> +8-421-674-8974 Via Papa Roma\n" + " <C Saborn> Main Street, +15-098-512-2222, Boulder\n" + "<Colin Marshall> *+9-421-674-8974 Edinburgh UK\n" + " <Bernard Povit> +3-498-512-2222; Hill Av. Cameron\n" + "+12-099-500-8000 <Pete Highman> Ontario Bd.\n" + " +8-931-512-4855 <W Mount> Oxford Street CQ-23071\n" + "<Donald Drinkaw> Moon Street, +3-098-512-2222, Peterville"; 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