Main class constructor !

[Alan.J.Thackray]

I am new to Java.

Since the "main" class has the main() function it it, is this called
before the constructor, or is a constructor totally irrelevant for a
main class, since you never "new" it ?
I am used to C++ whare main exists outside any class.

I have a test "main" class and it appears the constructor is never
called ?

Confused !

TIA


Remove the SPAMBLOCK from my email address to reply.

[Raymond DeCampo]

Re: Main class constructor !

Alan.J.Thackray wrote:[color=blue]
> I am new to Java.
>
> Since the "main" class has the main() function it it, is this called
> before the constructor, or is a constructor totally irrelevant for a
> main class, since you never "new" it ?
> I am used to C++ whare main exists outside any class.
>
> I have a test "main" class and it appears the constructor is never
> called ?
>[/color]

That is correct. Note that main() is declared static. In this context,
static means the same as it does in C++; a static method does not need
to be invoked on an instance of a class.

Many people who wish to stay in the OO paradigm will write main()
similar to the following:

public class MyClass
{
// ...other code...

public static void main(String args[])
{
final MyClass myInstance = new MyClass();
myInstance.go() ;
}
}

HTH,
Ray

--
XML is the programmer's duct tape.

[Hal Rosser]

Re: Main class constructor !


"Alan.J.Thackra y" <alan.j.thackra y@SPAMBLOCK.blu eyonder.co.uk> wrote in
message news:jqrlr0l1uc imh440cgvtkf6aq sbrhqakct@4ax.c om...[color=blue]
> I am new to Java.
>
> Since the "main" class has the main() function it it, is this called
> before the constructor, or is a constructor totally irrelevant for a
> main class, since you never "new" it ?
> I am used to C++ whare main exists outside any class.
>
> I have a test "main" class and it appears the constructor is never
> called ?
>
> Confused !
>
> TIA[/color]

Sounds like you actually named your class "main" ????
You should steer clear of class names like that to avoid confusion.
Name a class "Bill" or "George" - even "Sue" - use proper case to follow
convention, and keep away from reserved words.
--- main is a static method, which means you do not need to create an
instance of that class to run the method.
main is *not* a constructor, its a special method.
HTH



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