They certainly don't bind methods to objects at the same time - Obj-C does it when you send the message. You can send and catch messages with no methods attached to them, or that weren't even declared in the first place (at the expense of a compiler warning).
Of course there are other differences, but the most important one is just that the class library is much better - UI doesn't rely on inheritance, there's no class named LinkedHashMap (see http://ridiculousfish.com/blog/archives/2005/12/23/array/), and there _is_ a class named NSMutableArray.
Of course there are other differences, but the most important one is just that the class library is much better - UI doesn't rely on inheritance, there's no class named LinkedHashMap (see http://ridiculousfish.com/blog/archives/2005/12/23/array/), and there _is_ a class named NSMutableArray.
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