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
  • Match everything enclosed
    (?:...)
  • Capture everything enclosed
    (...)
  • 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

/
/
gmi

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 = "\\s(SOCIEDAD ANONIMA|LIMITADA|L.?T.?D.?A.?|E.?I.?R.?L.?|S.?P.?A.?)|(LIMIT[DA]*?)|(S[\\.\\s]{0,2}?A\\.?)$"; final String string = "SERVICIOS MARITIMOS LITORAL LIMITADA\n" + "GINO ALBERTO GATTINI COLLAO\n" + "DORA SUSY TAPIA SANTOS\n" + "MARIA VERONICA CORDOVA CARBONELL\n" + "JEREMY ADRIAN BURFORD BEER\n" + "SOC DE INVERSIONES GUINGUIS Y JADAD LTDA\n" + "DIGNA ISABEL RETAMAL ARAYA\n" + "EVELYN JOHANNA PEREIRA HENRIQUEZ\n" + "MANUFACTURAS TEXTILES COLETT INTERNACIONAL LIMITADA\n" + "NATALIA CAROLINA ESPINA TEILLIER\n" + "INVERSIONES COP DE ROC LIMITADA\n" + "AGRICOLA LA RINCONADA DE CALERA DE TANGO LIMITADA\n" + "BOSTON SCIENTIFIC LATIN AMERICA B V CHILE LIMITADA\n" + "COMERCIALIZADORA PRODUCTOS DEL NORTE Y SERVICIOS LTDA\n" + "LATITUD 90 S A\n" + "s.a.\n" + "s.a\n" + " sa\n" + " s.a.\n" + "sa.\n" + "S. A.\n" + "COMERCIAL DICU LIMITADA\n" + "MARIO DEL VILLAR ESCUTI Y CIA LTDA\n" + "AGRICOLA Y FORESTAL LAS BANDURRIAS LIMITADA\n" + "CHIRINO Y ASOCIADOS,AUDITORES CONSULTORES LIMITADA\n" + "VICHERAT Y PRADENAS LIMITADA\n" + "ASESORIAS E INMOBILIARIA FROIMOVICH LIMITADA\n" + "KENTUCKY FOODS CHILE LTDA\n" + "EPREL LIMITADA INGENIERIA Y CONSTRUCCION\n" + "PLASTICOS ARAUCO LIMITADA\n" + "INVERSIONES Y CALZADOS GRECO LIMITADA\n" + "PESQUERA OMEGA LIMITADA\n" + "PERFORACIONES AUSDRILL (CHILE) LTDA\n" + "KINTETSU WORLD EXPRESS (CHILE) LIMITADA\n" + "SOC PESQUERA QUEHUI S. A.\n" + "DORA SUSY TAPIA SANTOSsat\n" + "TALLERES LUCAS ATACAMA LIMITADA\n" + "AUTOMOTRIZ QUELLE LIMITADA\n" + "ERRAZURIZ Y BUSTAMANTE LTDA\n" + "MARVELKLEEN SOCIEDAD ANONIMA\n" + "BODEGAJE Y ALMACENAJE LIMITADA\n" + "SODEXO INVERSIONES S A\n" + "COMERCIALIZADORA DE ARTICULOS DE ORTOPEDIA Y TRAUMATOLOGIA\n" + "TAYLOR Y MONTGOMERY S A"; final String subst = ""; final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE | Pattern.CASE_INSENSITIVE); 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