NVL IsNull equivilent in Java? (Null handling)

[DiggidyMack69]

Hello all,
I was wondering if there a method/function etc that is simular to
Oracle's Nvl function. The funtion checks a parameter and if it is
null then is will output a given alternative. i.e. nvl(parameter1,
value1) if parameter1 is null then send value1.
I have a servlet with the following snippet of code that I'd like to
streamline as this is one of many checks to be made...ideas?
if(request.getParameter("idcol")!= null)
{
int idcol = Integer.parseInt(request.getParameter("idcol").tri m());
}else{
int idcol = 0;
}

[Steve Lieberman]

Di***********@hotmail.com (DiggidyMack69) wrote in message news:<c8*************************@posting.google.c om>...

Hello all,
I was wondering if there a method/function etc that is simular to
Oracle's Nvl function. The funtion checks a parameter and if it is
null then is will output a given alternative. i.e. nvl(parameter1,
value1) if parameter1 is null then send value1.

There's nothing directly equivalent to that function. However, there are
two alternatives:

(1) Using the tertiary operator (also used in C/C++)

The expression: <condition> ? <a> : <b>
evaluates to <a> if <condition> is true or <b> if condition is
false.

Your snippet could be rewritten as:
int idcol = (request.getParameter("idcol")!= null) ?
Integer.parseInt(request.getParameter("idcol").tri m()) : 0;

(2) Writing the function you're looking for yourself and putting it in
some static function in a utility class.

Steve

[DiggidyMack69]

[e-mail] (Steve Lieberman) wrote in message news:<be**************************@posting.google. com>...

Di***********@hotmail.com (DiggidyMack69) wrote in message news:<c8*************************@posting.google.c om>...

Hello all,
I was wondering if there a method/function etc that is simular to
Oracle's Nvl function. The funtion checks a parameter and if it is
null then is will output a given alternative. i.e. nvl(parameter1,
value1) if parameter1 is null then send value1.

There's nothing directly equivalent to that function. However, there are
two alternatives:

(1) Using the tertiary operator (also used in C/C++)

The expression: <condition> ? <a> : <b>
evaluates to <a> if <condition> is true or <b> if condition is
false.

Your snippet could be rewritten as:
int idcol = (request.getParameter("idcol")!= null) ?
Integer.parseInt(request.getParameter("idcol").tri m()) : 0;

(2) Writing the function you're looking for yourself and putting it in
some static function in a utility class.

Steve

Much cleaner, thanks!!