It appears that every object has its own copy

What this means is:

• An instance function cannot be invoked in the absence of an object instantiated from the class.
• An instance function can only be invoked by way of the specific object to which it belongs.
• When the code in an instance function references an instance variable of the class, it actually references the specific copy of the instance variable belonging to the specific object on which the function was invoked.

(Cont'd on next slide)