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pro_jsp thread: String conversion HELLLPP!!


Message #1 by "Paul Brady" <phbrady@b...> on Tue, 24 Jul 2001 00:54:16 -0400
you get it in a temp string

Sring strTemp = request.getParameter("PurchaseAmount");

long theAmount = 0L;

if ( (strTemp != null) && !strTemp.equals(""))
    theAmount = Long.parseLong(strTemp);

hope this help

-----Original Message-----
From: "Mike Curwen" <mikec@q...>
Date: Tue, 24 Jul 2001 10:01:25 -0500
To: "Pro_JavaServer_Pages" <pro_jsp@p...>
Subject: [pro_jsp] RE: String conversion HELLLPP!!


> long theAmount = Long.parseLong(request.getParameter("PurchaseAmount"));
> 
> This can be somewhat dangerous, since if "PurchaseAmount" returns null, you
> will throw a NumberFormatException.  So perhaps this:
> 
> long theAmount = 0L;
> try {
>   theAmount = Long.parseLong(request.getParameter("PurchaseAmount:));
> } catch (NumberFormatException nfe) {
>   //what do you do if PurchaseAmount doesn't convert to long ?
> }
> 
> 
> 
> -----Original Message-----
> From: Paul Brady [mailto:phbrady@b...]
> Sent: Monday, July 23, 2001 11:54 PM
> To: Pro_JavaServer_Pages
> Subject: [pro_jsp] String conversion HELLLPP!!
> 
> 
> This should be simple but apparently it's not.  All I need to do is get a
> value from a parameter and put it into a "long", so I can do math on it, eg
> 
> 
> long theAmount = request.getParameter("PurchaseAmount");
> // throws exception "can't convert string to long"
> 
> 
> Parameter values being strings by default, what do I do??
> 
> Thanks,
> PB
> 
> 
>

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