🚀 go-pugleaf

Most java books do explain these

a static method is a method that cannot be overriden. once defined in
class sub  classes cannot redefine the method.

a stativ variable is a variable that cannot be reassigned a new value eg

private static int i=0;

creates a variable that is initalied to 0 any attemps to assign another
value to i will result in an error. besides static variables belong to
the class not instances of the class.

any java text will give explanations to these as well as examples

Good luck in your studies

Robert wrote:

> Hi,
> I'm a first year IT student, I need to find out
>
> A) What is a Static Method
>
> b) What is a Static Variable
>
> or if u know where i could find the information.
> Thanks for ur help.
>
> Cheers
>
> Robert

AFAIK, "static" in Java means class-related, i.e. a static variable is a
variable (not a constant!) common to all instances of one class, and a
static method is a method only available by a class reference, not an
instance (e.g. Runtime.getRuntime()  is a method of _class_ Runtime, and it
returns an _instance_ of this class; main() is  another example of class
method, therefore: "[public] static [void]")
What Boyick Mhlanga refers to is "final": classes and methods can be
declared final to prevent overriding, final "variables" are like constants,
i.e. they can only be assigned a value at creation time.

-- Hartmut



Boyick Mhlanga schrieb:

> Most java books do explain these
>
> a static method is a method that cannot be overriden. once defined in
> class sub  classes cannot redefine the method.
>
> a stativ variable is a variable that cannot be reassigned a new value eg
>
> private static int i=0;
>
> creates a variable that is initalied to 0 any attemps to assign another
> value to i will result in an error. besides static variables belong to
> the class not instances of the class.
>
> any java text will give explanations to these as well as examples
>
> Good luck in your studies
>
> Robert wrote:
>
> > Hi,
> > I'm a first year IT student, I need to find out
> >
> > A) What is a Static Method
> >
> > b) What is a Static Variable
> >
> > or if u know where i could find the information.
> > Thanks for ur help.
> >
> > Cheers
> >
> > Robert

Static is similar to global on class level, other variables are on object
(instance) level.
Or on can say, you initiate a single variable to be shared and used by any
number of instances of that class, by declaring it static.
final static is a >> constant << variable that once initilised can never be
changed.

I think the convention is to name variable in the following way.

String eat;
static String _eat = "this";
final static String EAT = "this"; // I my self use all caps for finals
(globals).



Robert <mwalker1@bigpond.net.au> wrote in message
news:6wmv4.1491$vW.3803@news-server.bigpond.net.au...
> Hi,
> I'm a first year IT student, I need to find out
>
> A) What is a Static Method
>
> b) What is a Static Variable
>
> or if u know where i could find the information.
> Thanks for ur help.
>
> Cheers
>
> Robert
>
>

> I think the convention is to name variable in the following way.
> 
> String eat;
> static String _eat = "this";
> final static String EAT = "this"; // I my self use all caps for finals
> (globals).
> 
Actually, the static variable should not have a proceeding
underscore... In fact the java naming conventions state that, "Variable
names should not start with underscore _ or dollar sign $ characters,
even though both are allowed".

You are correct on the other examples, though.

See:
http://java.sun.com/docs/codeconv/html/CodeConventions.doc8.html#34851

-Benjamin Johnston
s355171@student.uq.edu.au

> Actually, the static variable should not have a proceeding
> underscore... In fact the java naming conventions state that,

You are correct, I actually remember someone mentioning the reason it is
allowed 'cause of arguments in the community.
In the Unix world C programs traditionally use the underscore a lot.
I personally "started" using it recently since it is a good way to
distinguish types.
Reason not to use it, I see many, best one, the fact you can not double
click copy the whole variable in one go in some text processors. However,
under Unix as an computer engineer, you don't worry about text related
editing things.

(Sorry if I am going a bit to far in explanation...)


Benjamin Johnston <s355171@student.uq.edu.au> wrote in message
news:Pine.OSF.4.21.0003071034590.27098-100000@student.uq.edu.au...
> > I think the convention is to name variable in the following way.
> >
> > String eat;
> > static String _eat = "this";
> > final static String EAT = "this"; // I my self use all caps for finals
> > (globals).
> >
> Actually, the static variable should not have a proceeding
> underscore... In fact the java naming conventions state that, "Variable
> names should not start with underscore _ or dollar sign $ characters,
> even though both are allowed".
>
> You are correct on the other examples, though.
>
> See:
> http://java.sun.com/docs/codeconv/html/CodeConventions.doc8.html#34851
>
> -Benjamin Johnston
> s355171@student.uq.edu.au
>
>