How to show Input Parameter in jasper report?

[purnendub]

In my jasper report,I have filter input parameter called user name, user id. Using Jaspersoft Studio, how do I show those parameter on my report if the end user enters user name or user id.

On my report, I want to show following using parameters.

Filter by: User Name -Jonny User ID - 12345

IF None of those parameters is entered, none will be shown.

Plz help.

[mattmb]

You may use a java expression like the following in a textfield of your header:

(  (  null != $P{User Name }  )  ||  (  null != $P{User ID }  )  )  ?  "Filter by:" +   ( (  null != $P{User Name }  ) ? " User Name- " +  $P{User Name }  : "" ) +
( (  null != $P{User ID }  ) ? " User ID- " +  $P{User ID }  : "" )   : ""