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Question regarding use of StringBuilder in DataBase Connection

 
Ranch Hand
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Dont Consider Commented Code

My question is what is the use of StringBuilder in the belowe code

database = (new StringBuilder(String.valueOf(database))).append(filename.trim()).append(";DriverID=22;READONLY=true}").toString();

please explain the above line.
 
Greenhorn
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Hi Samir,

I suggest you take that line of code and rewrite it to have only one method call per line. That way you might have a better chance of being able to understand what it's doing.
 
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Didn't you write that code yourself?

You are repeatedly adding text to the end of the StringBuilder, then getting its value as a String with the toString method and applying the name "database" to that with the assign operator.
 
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