Smooth, Frank :-)
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Eddie Bush
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The only thing with that is if you might need to change those constants while
the application is running, you won't be able to this way. Of course, you
could argue they aren't constants then, and i'd tend to agree! :)
For instance, in one application I wrote, I read in an application
configura
I'll probably get called insane ... :-)
Generally, when I have a class that contains constants, I do make them
final, but I set their value in a static initializer. Inside of this
static initializer, I will load the values from a properties file and
then assign them. This way, my values are easi
Title: RE: [OT] a java question
No Problem ashish, you can do one thing, don't initialize it, only declare the variable as final and assign the value at run time but you can assign
Only one time means subsequent attempts to assign a value to a Final variable result in a compiler
Erik Weber wrote the following on 1/26/2005 2:44 PM:
It is useful to note that it is theoretically possible for two competing
Threads to enter the setData method and get past the "if (!
isInitialized)" statement before one of them changes the value to true,
causing possible data corruption. This
Well, i put the main for the example...
but you need the class Perro before
you get the constant value
i Hope some like this.
Perro.setLoadMethod(theInitval);
then su can obtain
Perro.CONSTANT.uni..
Cordial Saludo
John J López
> Hi
> how will this class work if there is no public sta
On Jan 26, 2005, at 21:34, Ashish Kulkarni wrote:
how will this class work if there is no public static
void main method and have to be initialized by some
other class
Hmmm... syntax error... question does not compute...
What are you trying to do? Your original question was about setting and
acces
Hi
how will this class work if there is no public static
void main method and have to be initialized by some
other class
Ashish
--- [EMAIL PROTECTED] wrote:
> i don't not it this is a good practice. . Maybe it's
> a bad practice
> but.. but this work
> and int this way you can mantain the cons
i don't not it this is a good practice. . Maybe it's a bad practice
but.. but this work
and int this way you can mantain the constants public static and final
. the other problem is tha if you get the value of the constant before yo
initialize you allways obtain a null value
well sorry fo
On Jan 26, 2005, at 20:37, Erik Weber wrote:
By the way, real nice site you have there (I'm assuming it is yours).
Great design.
The design came with the stock content management system I'm using:
http://www.textpattern.com/
Which perhaps not accidentally looks very much like the one of its
creat
On Jan 26, 2005, at 20:20, Cedric Levieux wrote:
if (! isInitialzed)
Shouldn't you throw one exception or two for good measure?
Cheers
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ot; <[EMAIL PROTECTED]>
To: "Struts Users Mailing List"
Sent: Wednesday, January 26, 2005 8:15 PM
Subject: Re: [OT] a java question
so it will be some thing like this
public MyClass
{
private static String data;
public static String getData()
{
return data;
}
publ
On Jan 26, 2005, at 20:28, Ashish Kulkarni wrote:
that is what i am going to do,
Gotta do what you gotta do.
But at least don't use any spurious boolean to keep track if a variable
has or has not been set. After all, Java doesn't define 'null' for
nothing.
Cheers
--
PA
http://alt.textdrive.com/
Yeah, in "bootstrapping" I often run a static initializer right off the
bat that loads bootstrap properties from the jar, then I set constants
using private static getters that access the loaded properties
underneath. Don't know where I picked that up (it's more useful in
Swing), but it makes i
Or, keep all your static shared junk in your initializer class, then
make the mutator private, accessor public.
w
On Wed, 26 Jan 2005 11:29:53 -0800 (PST)
[EMAIL PROTECTED] wrote:
However, as another poster said, why not just set the value in a
static initializer block, and only expose a getter
Are you saying that some other initialization class will call your setter to
initialize it? And you only want that class to be able to call it? If so,
there's no standard way to do it, but... you could pass in an instance of Class
to the setter, and check that it's only your initializer class.
On Jan 26, 2005, at 20:16, Erik Weber wrote:
There is more than one approach.
Alternatively you can still use a final, but only assign a value to it
upon initialization. No further change will be allowed after that. So
many obscure ways to shot yourself in the foot :o)
Cheers
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http://alt.te
"Struts Users Mailing List"
>
> Sent: Wednesday, January 26, 2005 8:15 PM
> Subject: Re: [OT] a java question
>
>
> > so it will be some thing like this
> >
> > public MyClass
> > {
> > private static String data;
>
Message -
From: "Ashish Kulkarni" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List"
Sent: Wednesday, January 26, 2005 8:15 PM
Subject: Re: [OT] a java question
> so it will be some thing like this
>
> public MyClass
> {
> private static Stri
On Jan 26, 2005, at 20:15, Ashish Kulkarni wrote:
public static setData(String input)
By making it private perhaps?
Alternatively, I would recommend some readings:
http://java.sun.com/docs/books/tutorial/java/index.html
Cheers
--
PA
http://alt.textdrive.com/
--
There is more than one approach.
One is this:
public static final SOME_STRING_VALUE =
someStaticMethodThatLoadsValueFromPropertiesFile();
Another is to use a static getter rather than using a constant at all.
Erik
Ashish Kulkarni wrote:
Hi
If we need a variable which can be accessed from any
clas
so it will be some thing like this
public MyClass
{
private static String data;
public static String getData()
{
return data;
}
public static setData(String input)
{
data = input;
}
}
this will work, but how to make sure that setData is
called only from initalization class, a
You want a private variable and a public static accessor/mutator pair:
public class test {
private static int var;
public static void setVar(int i) {
var = i;
}
public static int getVar() {
return var;
}
}
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Frank W. Zammetti
Founder and Chief Software Architect
Omnytex Te
On Jan 26, 2005, at 20:08, Ashish Kulkarni wrote:
how do i protect it from updated
by any other class.
Just don't. Use a static accessor method instead.
Cheers
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PA
http://alt.textdrive.com/
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Hi
If we need a variable which can be accessed from any
class, then we set this variable as static and access
it as MyClass.Variable, this variable can be modified
from any class if we dont set this variable as final
like public static final String Variable = "ABC";
here is the problem, i cannot se
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