Marshall schrieb:
> void foo() {
> int i = 0;
> int j = 0;
> j = 1;
> i = 2;
> // check value of j here. It is still 1, no matter what you filled
> // in above.
> // The assignment to i cannot be made to affect the value of j.
> }
>
> Those two local primitive variables cannot be made to have the same
> identity.
Sure. To state it more clearly, they cannot be aliases.
> But you can update them, so this is an example of mutability
> without the possibility of identity.
You're being a bit sloppy with terminology here. "Identity" in the
phrase above refers to two entities, in the sense of "i and j cannot be
identical".
Identity is actually a property of a single entity, namely that what
remains constant regardless of what you do with the entity.
Regards,
Jo
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