What is the difference between List<T> and List<? extends T>? I have read http://docs.oracle.com/javase/tutorial/java/generics/bounded.html but it is still not clear to me.
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José D.
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I don't think this is a duplicate with that question at all. – José D. Oct 20 '14 at 10:47
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1I can't answer, so I will comment what I think is the real answer to my question: List
represents a List of T elements (each element can be a T or any subclass of T). List extends T> represents a List where U extends T. That means you can't add a 'T' element to a List extends T> (because it could be a List such that U extends T but the generic T you are trying to add to the list is not of type U) but you can always add a 'T' element to a List – José D. Oct 20 '14 at 10:49. (There are other differences)