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- 137This is not always a perfect approach, it's simply a good guideline. the Liskov Substitution Principle is much more accurate (fails less).Bill K– Bill K2008-09-17 00:25:32 +00:00Commented Sep 17, 2008 at 0:25
- 51"My car has a vehicle." If you consider that as a separate sentence, not in a programming context, that makes absolutely no sense. And that's the whole point of this technique. If it sounds awkward, it is probably wrong.Nick Zalutskiy– Nick Zalutskiy2011-08-14 18:27:03 +00:00Commented Aug 14, 2011 at 18:27
- 56@Nick Sure, but "My Car has a VehicleBehavior" makes more sense (I guess your "Vehicle" class could be named "VehicleBehavior"). So you cannot base your decision on "has a" vs "is a" comparision, you have to use LSP, or you will make mistakesTristan– Tristan2011-08-26 11:53:21 +00:00Commented Aug 26, 2011 at 11:53
- 46Instead of "is a" think of "behaves like." Inheritance is about inheriting behavior, not just semantics.ybakos– ybakos2012-03-31 19:25:39 +00:00Commented Mar 31, 2012 at 19:25
- 15This doesn't answer the question. The question is "why" not "what".Nick Bull– Nick Bull2017-10-20 10:57:45 +00:00Commented Oct 20, 2017 at 10:57
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