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 = "\\/\\/(\\S+)业务员分配量\\s.*(?<=\\s)(\\w+)(?=S)"; final String string = "\n" + " //绑定业务员准确率\n" + " private int bindSchedulerAccuracy;\n" + " //绑定业务员分配率\n" + " private BigDecimal bindSchedulerAccuracy;\n" + " //绑定业务员分配量\n" + " private int bindSchedulerCount;\n" + " //绑定业务员重分网点量\n" + " private int bindReSchedulerGsCount;\n" + " //绑定业务员重分分部量\n" + " private int bindReSchedulerSjCount;\n" + " //绑定业务员重分业务员量\n" + " private int bindReSchedulerYwyCount;\n\n" + " //历史业务员准确率\n" + " private int historySchedulerAccuracy;\n" + " //历史业务员分配率\n" + " private BigDecimal historySchedulerAccuracy;\n" + " //历史业务员分配量\n" + " private int historySchedulerCount;\n" + " //历史业务员重分网点量\n" + " private int historyReSchedulerGsCount;\n" + " //历史业务员重分分部量\n" + " private int historyReSchedulerSjCount;\n" + " //历史业务员重分业务员量\n" + " private int historyReSchedulerYwyCount;\n\n" + " //电子围栏业务员准确率\n" + " private int fenceSchedulerAccuracy;\n" + " //电子围栏业务员分配率\n" + " private BigDecimal fenceSchedulerAccuracy;\n" + " //电子围栏业务员分配量\n" + " private int fenceSchedulerCount;\n" + " //电子围栏业务员重分网点量\n" + " private int fenceReSchedulerGsCount;\n" + " //电子围栏业务员重分分部量\n" + " private int fenceReSchedulerSjCount;\n" + " //电子围栏业务员重分业务员量\n" + " private int fenceReSchedulerYwyCount;\n\n" + " //附近业务员准确率\n" + " private int nearSchedulerAccuracy;\n" + " //附近业务员分配率\n" + " private BigDecimal nearSchedulerAccuracy;\n" + " //附近业务员分配量\n" + " private int nearSchedulerCount;\n" + " //附近业务员重分网点量\n" + " private int nearReSchedulerGsCount;\n" + " //附近业务员重分分部量\n" + " private int nearReSchedulerSjCount;\n" + " //附近业务员重分业务员量\n" + " private int nearReSchedulerYwyCount;\n\n" + " //预测业务员准确率\n" + " private int predictSchedulerAccuracy;\n" + " //预测业务员分配率\n" + " private BigDecimal predictSchedulerAccuracy;\n" + " //预测业务员分配量\n" + " private int predictSchedulerCount;\n" + " //预测业务员重分网点量\n" + " private int predictReSchedulerGsCount;\n" + " //预测业务员重分分部量\n" + " private int predictReSchedulerSjCount;\n" + " //预测业务员重分业务员量\n" + " private int predictReSchedulerYwyCount;\n\n" + " //顺路业务员准确率\n" + " private int onthewaySchedulerAccuracy;\n" + " //顺路业务员分配率\n" + " private BigDecimal onthewaySchedulerAccuracy;\n" + " //顺路业务员分配量\n" + " private int onthewaySchedulerCount;\n" + " //顺路业务员重分网点量\n" + " private int onthewayReSchedulerGsCount;\n" + " //顺路业务员重分分部量\n" + " private int onthewayReSchedulerSjCount;\n" + " //顺路业务员重分业务员量\n" + " private int onthewayReSchedulerYwyCount;\n\n" + " //地址业务员准确率\n" + " private int addressSchedulerAccuracy;\n" + " //地址业务员分配率\n" + " private BigDecimal addressSchedulerAccuracy;\n" + " //地址业务员分配量\n" + " private int addressSchedulerCount;\n" + " //地址业务员重分网点量\n" + " private int addressReSchedulerGsCount;\n" + " //地址业务员重分分部量\n" + " private int addressReSchedulerSjCount;\n" + " //地址业务员重分业务员量\n" + " private int addressReSchedulerYwyCount;\n\n"; final String subst = "//$1业务员分配率\\n\\tprivate BigDecimal $2SchedulerAccuracy;\\n\\t$0"; 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