Is there a way in python to restrict generic types to ones that can be instantiated? I'm looking for an equivalent to C#'s where T : new() I am already using type hints as follows T = TypeVar(&qu...

I'm trying to write a function that tells me whether one Enum is the successor of another. Here was my first attempt: isSuccessorOf x y = x == succ y Looks reasonable. Let's try it: λ> isSucces...

I know that there was a similar question already posted, although I think mine is somewhat different... Suppose you have two methods: // Bounded type parameter private static <T extends Number...

(Actually, this question is not directly related to lambdas, but to casts using bounds, so the question marked as duplicate does not provide an answer to this question. You'll find the answer...

I was following a tutorial about generics in Java defining this static method: public static <T extends Comparable<T>> T min(T a) { ... } and saying that min(new GregorianCalendar()...

I am trying to understand bounded types and not quite grasping the point of them. There is an example of bounded generics on which provides this use case: public class NaturalNumber<T extends ...

For a project, I’ve created a type based on Int which throws an error whenever the program tries to use a value beyond limits ([0..127] in my case). The code below does this and it works for me. I...

I got a small problem here regarding generics bounded type with lists. Please help out! Model.java public class Model { } ClassA.java public class ClassA<T extends Model> { private List...

In Java, it is possible to bind the type parameter of a generic type. It can be done like this: class A<T extends B> { ... } So, the type parameter for this generic class of A should be B o...

What I mean is this: scala> class Bounded[T <: String](val t: T) defined class Bounded scala> val b: Bounded[_] = new Bounded("some string") b: Bounded[_] = Bounded@2b0a141e scala> b...

In Java type arguments, does mean strictly subtypes only? or would E also suffice?