newbie, 2 questions : variable scope and XDarwin

From: biner (biner.sebastien_at_ouranos.ca)
Date: 08/30/04 

Date: 30 Aug 2004 08:46:37 -0700

Hello,

  I have two questions. One about variable scope and the other regards
using java on xdarwin.

  I would like to pass a variable to an object of a given class with
the constructor and I would like that variable to be visible by the
methods of that class. To illustrate, here is the output I get from
the code that follows :

*** begin output ***
[sbiner:~/CODE/java/src] biner% java testVariableScope
const maClase, toto=10.0
const maClase, toto2=10.0
montre Toto, toto=0.0
montre Toto, toto2=10.0
*** end output ***

*** begin code ***
class maClasse {

    double toto ;
    double toto2 ;
    
    // constructeur
    maClasse(double toto) {
        toto2=toto ;
        System.out.println("const maClase, toto="+toto) ;
        System.out.println("const maClase, toto2="+toto2) ;
    }
    // methode montre Toto
    void montreToto() {
        System.out.println("montre Toto, toto="+toto) ;
        System.out.println("montre Toto, toto2="+toto2) ;
    }
}

public class testVariableScope {

    // main
    public static void main(String[] args) {
        double toto = 10. ;
        maClasse titi = new maClasse(toto) ;
        titi.montreToto() ;
    }

}
*** end code ***

  I would like the montreToto method to "see" the right value of toto
without having to copy toto in toto2. And I don't understand why toto2
is "viewed" and not toto. Anybody can give me a pointer ?

  The other question has to do with XDarwin. Using java on Xdarwin, I
would like for the windows oppened by java (and the appletviewer) to
be opened in X and not in OSX. Is there a way to do this? It is a bit
of a pain to constantly change between XDarwin for programming and
compiling and OSX to see the results.

  Any help with these question would be appreciated.

Thank you

Sebastien
biner.sebastien@ouranos.ca

*****************************