exactly, u got it right..as object declare as String , it refer to null 
unless it is assign a "" ,or some String value..


Isak Rickyanto wrote:

> Thank You Very Much........ Your advice is right ........!!
>
> But I have a question in my mind...
> I still confuse when we have telepon=null and when it is=""
>
> I think that if form first loaded and the form field not filled...and the
> value not defined so it is null....
> but if the value is defined it will be = ""
>
> Right or wrong??
>
>