Getting Error Message : java.util.regex.PatternSyntaxException: Unclosed character class near index 0

While try to split the value by using "[" OR "]" then we are getting the above issue.


Ex : String str="Selenium []"
    str.split("[")

we are getting the below exception.


Exception :

java.util.regex.PatternSyntaxException: Unclosed character class near index 0


Solution

The Special character "["  and "]" used in Regular Experssions, so these characters are not standared characters.

So we should add excape character for use this special character ("\[" and "\]"). But the escape character "\" is not allowed for "["  and "]".

So we should use string as "\\[" or "\\]"


Exact code will be

Ex : String str="Selenium []"
    str.split("\\[")


http://stackoverflow.com/questions/21816788/unclosed-character-class-error