🚀 go-pugleaf

I think it is like this.  When you cal setToNull you also create a
variable called myVar.  You set myVar to null and not myXXX.  Also if you
set something to null I think it will be garbage collected and you lose
the whole object, if that is what you want.  That is where the global and
local variables come in.

What you can do is declare a private var called XXX FmyXXX and then use
that.

Kobus



Gemplus Software wrote:

> Hello,
>
> I know that  passing  an object to a function is by reference.
>
> So Why if I do that the object passesd is not modified. Illustration:
>
> Class XXX {
>
>    int myInt;
>
>     public XXX() {
>         myInt = 2;
>     }
>
>     public void setToNull ( XXX myVar) {
>       myVar = null;
>     }
>
>    public String toString() {
>      return "myInt = " + myInt;
>    }
>
>    public static void main(String[] args) {
>    XXX myXXX= new XXX();
>
>    myXXX.setToNull(myXXX);
>
>    System.out.println("myXXX is " + myXXX.toString());
>    }
> }
>
> displays myXXX is myInt = 2. Why ????