On 10/10/07, Robert Cummings <robert@xxxxxxxxxxxxx> wrote: > > What I was really illustrating is how interfaces are syntactic > sugar only. In my above example what I've really shown is an > implicit interface :) Since OOP is largely meant to model real > world things, ask yourself this... when a doctor sews a pig's > heart into a human, do you think there's an explicit interface > someplace that checks for compatibility, or does it "just work" > if the conditions are right. Food for thought, pork in fact ;) i would look at that as a great example of an interface in action. the pigs heart has to be compatible with the human body in some way; they both have the same interface; namely the holes the tubes connect to. i assume the doctors are the ones who run the interface compatibility check. the implementation is different i suppose (im not a biologist, just guessing here :)) but thats the beauty of an interface; you just get a contract, not behavior. -nathan
