how to concatenate parameters

[santosh.audi19]

Here I am using below expression for a paramter name P1 which fetches data from cal, param_date parameters

 

(

    $P{cal}.set($P{param_date}.getYear()+1900, $P{param_date}.getMonth(), $P{param_date}.getDate())

||

    $P{cal}.add(Calendar.MONTH, -1)

)

? null : $P{cal}.getTime()

 

when i run the report it is showing error at `||` 

 could you please help me out .How do I concatenate parameters?

 

Thanks All.

 

[sadakar]

Try keeping (  (brakets) separately.

[javier.ggi90]

You can concatenate fields, variables and parameters by using the plus (+) sign. Pipes are used as the OR conditional.