Handling User Exceptions in DialogBox

Hi all....
I have the following Dialogbox which asks the user for 2 integers and then adds these to the TextArea with some predefined text.
What I wanted was if the user inputs anything illegal such as text, inplace of 2 integers, how I could detect this and warn the user?
String setSize1 = (String JOptionPane.showInputDialog(topPanel, "Enter your Preferred Size. " + "\n" + "Please enter 2 integers:", "Set Size", JOptionPane.QUESTION_MESSAGE);editor.append("setSize( " + setSize1 + "); " + "\n " + "}");
Any help much appreciated....

Thanks for the advice. You are correct of course; handling every possible exception is the ideal, one which we should all aspire to...
In the meantime though, I'd like to have a sort of safety net to catch all those "unexpected" exceptions. In my searches I have just now found these links which look very promising as a potential solution/work-around for this issue:
http://www.experts-exchange.com/Programming/Programming_Languages/Java/Q_20567074.html
http://developer.java.sun.com/developer/bugParade/bugs/4714232.html
The idea of overriding the exception handler I feel is a pretty heavy handed way of dealing with uncaught exceptions... any other thoughts on this are welcome.

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How to handle user exception in thread

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How to hanble user exception in thread
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=========
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Hi all,
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Hi Shikhil
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Hi,
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Sven,
I made few programs where we used business scenario:
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To confirm shipment (status 4) I call the same FM with:
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How to handle multiple exceptions by the same code?

Hi, all:
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If you have one or two places in your code that need multiple exceptions, just do it with multiple catch statements. Unless you are trying to write the most compact Programming 101 homework program, inventing tricks to remove two lines of code is not good use of your time.
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In my case, the ArrayIndexOutOfBoundsException and
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Re: Handling an exception in a superclass...

Akos,
When subclasses override ExecSQL(), do they call
super.ExecSQL() before/after doing additional processing?
If so, it makes sense to handle some generic exceptions
in the superclass. If not, then your exception handlers
will never be executed.
For database reconnection logic, you can write a
SQLManager.GetDBSession() method
which will check the connection and return a valid
DBSession object. Even the reconnecting logic can be
coded in this method and all SQLs simply use GetDBSession()
in their ON SESSION clause. Apparantly, this seems to
be the standard way of handling Database connections.
I have seen it being used in many frameworks, including
the one that I wrote.
Hope this helps.
Ajith Kallambella M.
From: Gabriel Akos <[email protected]>
Reply-To: Gabriel Akos <[email protected]>
To: [email protected], [email protected]
Subject: Handling an exception in a superclass...
Date: Mon, 17 May 1999 17:26:06 +0200
Hi!
I have the following problem:
1. I have a class, name SQLManager
2. I have a method, ExecSQL
3. In method ExecSQL I do some SQL, occasionally it's loosing the
connection to the DB, gets an
exception, reasoncode 201 (If my memory is correct)
4. I have some subclasses of SQLManager, which override ExecSQL, and do
some SQL stuff in it.
Question: Is it possible to handle the specific exception in the
superclass, and do the reconnect?
And probably let the subclass execute the ExecSQL again?
Or has anybody better ideas of organizing these things?
TIA, best regards,
Akos Gabriel
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Hi,
Yes you can : it is an architectural problem.
You must divide the work into 2 methods : one on the generic level and one
on the concrete level.
The generic level will manage the cinematic : it could be ExecSql. In the
ExecSql method you can call a DoExecSql method which can be overridden by
the developers and contain the sql statement. Then, the ExecSql method can
manage the reconnect using DBSession.Reconnect before the call of the
DoExecSql if the DBSession.IsConnected = FALSE. You can also manage a While
with a limited number of retries if you catch the exception from the
DoExecSql method.
Just be aware that when you will reconnect to the database, you will loose
the statements you could have cached with your DBSession.
Hope this helps,
Daniel Nguyen
Freelance Forte Consultant
Url : http://perso.club-internet.fr/dnguyen/
Gabriel Akos a écrit:
Hi!
I have the following problem:
1. I have a class, name SQLManager
2. I have a method, ExecSQL
3. In method ExecSQL I do some SQL, occasionally it's loosing the
connection to the DB, gets an
exception, reasoncode 201 (If my memory is correct)
4. I have some subclasses of SQLManager, which override ExecSQL, and do
some SQL stuff in it.
Question: Is it possible to handle the specific exception in the
superclass, and do the reconnect?
And probably let the subclass execute the ExecSQL again?
Or has anybody better ideas of organizing these things?
TIA, best regards,
Akos Gabriel
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
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To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
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Handling an exception in a superclass...

Hi,
Why not have a method at the superclass level, called ExecSQL(), that
internally does the following:
begin
self.OnExecSQL();
exception
when e:Whatever do
end;
In that way all your code in the hierarchy that is in OnExecSQL() is within
the exception block.
Tim Sawyer
PanCredit
Leeds, UK.
From: Gabriel Akos <[email protected]>
Reply-To: Gabriel Akos <[email protected]>
To: [email protected], [email protected]
Subject: Handling an exception in a superclass...
Date: Mon, 17 May 1999 17:26:06 +0200
Hi!
I have the following problem:
1. I have a class, name SQLManager
2. I have a method, ExecSQL
3. In method ExecSQL I do some SQL, occasionally it's loosing the
connection to the DB, gets an
exception, reasoncode 201 (If my memory is correct)
4. I have some subclasses of SQLManager, which override ExecSQL, and do
some SQL stuff in it.
Question: Is it possible to handle the specific exception in the
superclass, and do the reconnect?
And probably let the subclass execute the ExecSQL again?
Or has anybody better ideas of organizing these things?
TIA, best regards,
Akos Gabriel
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>

Hi,
Yes you can : it is an architectural problem.
You must divide the work into 2 methods : one on the generic level and one
on the concrete level.
The generic level will manage the cinematic : it could be ExecSql. In the
ExecSql method you can call a DoExecSql method which can be overridden by
the developers and contain the sql statement. Then, the ExecSql method can
manage the reconnect using DBSession.Reconnect before the call of the
DoExecSql if the DBSession.IsConnected = FALSE. You can also manage a While
with a limited number of retries if you catch the exception from the
DoExecSql method.
Just be aware that when you will reconnect to the database, you will loose
the statements you could have cached with your DBSession.
Hope this helps,
Daniel Nguyen
Freelance Forte Consultant
Url : http://perso.club-internet.fr/dnguyen/
Gabriel Akos a écrit:
Hi!
I have the following problem:
1. I have a class, name SQLManager
2. I have a method, ExecSQL
3. In method ExecSQL I do some SQL, occasionally it's loosing the
connection to the DB, gets an
exception, reasoncode 201 (If my memory is correct)
4. I have some subclasses of SQLManager, which override ExecSQL, and do
some SQL stuff in it.
Question: Is it possible to handle the specific exception in the
superclass, and do the reconnect?
And probably let the subclass execute the ExecSQL again?
Or has anybody better ideas of organizing these things?
TIA, best regards,
Akos Gabriel
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
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'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>

How to handle the exception com.sun.xml.internal.messaging.saaj.SOAPExcepn

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How to handle the exception in GP(Exception : Activity could not be read)

Hi all
we are getting the GP exceptions as 1) "Activity could not be read" 2) "Action has been stopped"
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currently i got some documents in SDN on GP exceptions but those are related to manual exceptions for example if you enterd wrong data in the inputfield then we can handle those exceptions then it will allow to enter the new value but the exceptions which i mentioned above are new it seems
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bindu

Hi Shikhil
Thanks for your reply
Please have a look below for exceptions which i am getting in GP and let me know how to handle these exceptions.
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