Re: save input from web form to a .dat file

From:
"Oliver Wong" <owong@castortech.com>
Newsgroups:
comp.lang.java.programmer
Date:
Mon, 14 Aug 2006 20:11:54 GMT
Message-ID:
<eO4Eg.3507$395.176@edtnps90>
<Nancy.Nicole@gmail.com> wrote in message
news:1155582437.589085.16060@75g2000cwc.googlegroups.com...

Okay, I think I've found the problem. My applet class tries to send the
data to my interface class. The interface class can work independently
and can save, modify and delete entries. However, if I try to save data
from the applet (passing as parameters to the interface), the program
dies. If I create an instance of my interface class (which is what I am
doing when I am working with it independently), my program should
work....I think. However, when I try to create an instance of my
interface from my applet (i.e. DataClass dc = new DataClass()), I have
a problem. DataClass() the constructor throws an IOException.

If I use try{}catch(){}, it always falls to catch and if I try to throw
an IOException on the method that creates an instance of DataClass(),
ActionPerformed yells. ActionPerformed calls getQuote()throws Exception
which calls DataClass()throws Exception. ActionPerformed cannot throw
exceptions.... How in the world am I supposed to fix this? I tried to
read the guide Oliver suggested, but I don't think I'm quite
understanding...


    The root problem is that code running on the client's machine cannot
directly invoke the methods of an object running on the server's machine.
You have to provide some sort of webservice via PHP or JSP, or create a
client/server architecture via sockets or RMI.

    - Oliver

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