Small Doubt

[Rajan Chinna]

Why there are some methods and variables which start with _ (underscore) character in JSP servlet java file? Is there any special purpose behind that?

[K Anshul]

I think it refers to methods and variables which are generated by the server and which u shouldn't override in ur code.

[Nicholas Cheung]

Different application server will generate different set of the code, even with the same JSP, and thus, I guess this is just their own preference.

As if you follow the coding practice stricty, you wont write your code variables started with "_".

Nick

[Mary Wallace]

But most of the application sever generate class files starting with "-".

[Nicholas Cheung]

The coding practice is to assure the readability and the standard, however, there should be no/less people who will read the generated codes, just like we seldom read EJB Stubs.

Thus, this is not a big deal indeed.

Nick

[Bryan Basham]

Originally posted by Rajan Chinna:
Why there are some methods and variables which start with _ (underscore) character in JSP servlet java file? Is there any special purpose behind that?

The only member of a JSP servlet class that must use the underscore is the _jspService method, which is part of the JSP API standard. All other uses of underscore are the parlance of the container's JSP engine (as others have mentioned already).

-Bryan