Split using a bracket

How can I split a string using [ as the delimiter?

String line = "blah, blah [ tweet, tweet";

if I do

line.split("[");

I get an error

Exception in thread “main” java.util.regex.PatternSyntaxException: Unclosed character class near index 1 [

Any help?

Answer

The [ is a reserved char in regex, you need to escape it,

line.split("\[");