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A comment on Monads are monoids in the category of endofunctors. Parent comment
List<Integer> is a type.
List<T> is a type constructor.
In order to get a real type from a type constructor, you need to "pass it type parameters". In the example above, you need to say that T is Integer.
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List<Integer> is a type.
List<T> is a type constructor.
In order to get a real type from a type constructor, you need to "pass it type parameters". In the example above, you need to say that T is Integer.