🚀 go-pugleaf

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 ????