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

r"
"
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 = "[,\\s]?([A-Za-z. '\\s/()\\\"]+)?(Manager|manager)([A-Za-z. '\\s/()]+)?(?=,)"; final String string = "id,First Name,Last Name,Current Job1,Current Job2,PastJob1,PastJob2,PastJob3,Nan\n" + "0,Amanda,Maldonado,Recruiter,NA,Sales Associate,Waitress,Office Assistant,1\n" + "1,Ashley,Galetti,Project Manager,NA,Front of house manager,NA,NA,1\n" + "2,Brent ,Tally,President,NA,Director of Construction,NA,NA,1\n" + "3,Chris,Rodriguez,Sec/Treasure,Co-owner,NA,NA,NA,1\n" + "4,Corey,Miller,Top Ranked Multi-Unit Director,NA,Regional Director Services,Regional Installed Sales Director,Area Installation Manager,1\n" + "5,Cristian,Turcios,Project Assistant,NA,Contractor,NA,NA,1\n" + "6,David,Cone-Gorham,Owner,NA,\"Vice President, Regional Director\",Division Manager/ Executive Recuiter,NA,1\n" + "7,Devin,Rivers,Sr. Account Executive,NA,Full Desk Account Executive,NA,NA,1\n" + "8,Douglas W.,Fletcher,Deputy Construction Group Manager,NA,Construction Director,Operation Manager,Vice President of Construction,1\n" + "9,Dustin,Cox,Contracts Administrator,NA,Contracts / Operations Manager,Contract Administrator,Golden Contracts System Specialist,1\n" + "10,Eddie,Martinez,Vice President of Membership,Director of Safety and Risk,Construction manager,Assistant Project Manager,NA,1\n" + "11,Eric,Buckner,Sr. Construction Management Consultant,NA,\"Director, Project Operations\",\"Director, Construction Resource Management\",Project Manager/Site Manager,1\n" + "12,George,Dokos,Construction Recruiter,NA,President-Recruiter,Construction Recruiter,Construction Recruiter,1\n" + "13,Jay,Mogge,Co-Owner,Construction Manager,Senior Project Manager,Officer,NA,1\n" + "14,Jeff,Crenshaw,Construction Risk Management and advisor,NA,Sales,Scout Sniper Platoon Sergeant,Sales,1\n" + "15,Jeremy,Rainwater,Construction Field Manager,NA,Assistant Field Manager,General Manager,National Production Manager,1\n" + "16,Jim ,Conlow,General Contractor,NA,ReDevelopment Director,\"Division Manager, Energy Projects\",Construction; Development Management - President,1\n" + "17,Jimmy,Fong,Recruiter,NA,Production Specialist,Sales Representative,Specialist,1\n" + "18,Joe,Walton,Builder,Professional Home Inspector,Field Manager II,Construction Manager,NA,1\n" + "19,Keith,Eaton,Janitorial/Maintenance,NA,Project Manager,Project Manager/Engineer,Project Manager/Engineer,1\n" + "20,Kenneth,Dunn,T&D Outage Planner,NA,Construction Manager,Project Manager,Superintendent,1\n" + "21,Lauren,Stafford,Senior Sales Manager,Sales Manager,Sales Support Coordinator,Builder relations,Customer Experience Lead,1\n" + "22,Mike,Seery,President,President,Project Manager,Managing Partner,NA,1\n" + "23,Paul,Horn,Sales Estimator,NA,Territory Sales Manager,Territory Sales Manager,National Account Manager,1\n" + "24,Paul,Pollesch,Design and Construction Services Manager,NA,Assistant Operations and Maintenance Officer,MSCE Graduate Student,Company commander/ Assistant Operations Officer,1\n" + "25,Paul ,Hooks,Vice president of Construction Management,NA,Project Manager,Project Manager/Interiors Division Manager,NA,1\n" + "26,Ray ,LaMonica,\"Project Controls, Engineering, Construction Management Recruiter\",Account Recruiting Manager,Territory Sales Executive,Business Account Executive,NA,1\n" + "27,Ray ,Meyer,Vice President,Adjunct Professor/Construction Management,NA,NA,NA,1\n" + "28,Roy ,Flournoy,Superintendent,NA,Project Manager,Superintendent,Superintendent,1\n" + "29,Roy ,Allen,Owner,NA,Construction Project management & Project superintendent,Construction Project Manager and Project Superintendent,Construction Project Manager and Project Superintendent,1\n" + "30,Ryan,Salladay,Senior Recruiter,NA,Sales Executive,Associate Vice President of Sales,Fitness professional,1\n" + "31,Sam,ller,Principal,NA,Director of Safety Services,Director of Field Safety Operations,Owner,1\n" + "32,Steven,Hadley,President,Construction Management Alumni,Director of Program Management,Estimator,Realtor,1\n" + "33,Stewart,Scott,Project Executive,NA,\"Vice President of Engineering, Program Management\",\"Corporate Vice President Capital Projects, Property Management\",Senior Project Manager,1\n" + "34,Suadad,Al tameemi,Construction Inspector,NA,Quality Inspector,Planning Manager and Supervising Engineer,\"Scheduler, Supervisor Engineer\",1\n" + "35,Tony,Pacifico,Senior Project Manager,NA,Senior Project Manager,Construction Management Consultant,Senior Project Manager,1\n" + "36,Truitt,Rounsavall,Project Manager,NA,Facilities Manager (Contract),Program Manager,Project Manager,1\n" + "37,Virgil,Gray,Vice president of Construction Management,NA,Manager of Construction Services,\"Principal Consultant, Program Management Office (PMO)\",Vice President,1\n" + "38,Zach,Kempthorne,Project Management Consultant,NA,Project superintendent,Project Superintendent,Project Manager/Operations Manager,1\n"; final String subst = ",3"; 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