using dynamic path in FileOutputStream("")

[vineet varghese]

hi all
i have a String user_id ..which CHANGES on every request
and i am using PdfWriter.getInstance(document, new FileOutputStream("C:\\hello.pdf"));
to generate my pdf in ..but i the pdf should contain the user_id as a part of its name ........how can i do it ?

[Maneesh Godbole]

C:\\user_id_hello.pdf?

[vineet varghese]

the value of the string user_id i meant ...

[Paul Clapham]

"C:/" + user_id + "hello.pdf"