House<Object> is not allowed
class Animal{}
class Dog extends Animal{}
class Predog extends Dog{}
class House<A extends Animal> {
public House<? super Dog> build(A a) {
return ..
}
}
generic method return parameter : House <? super Dog>
has super type realtionship with
House<Dog>, House<Animal>, House<Object>, House<>
type class parameter : <A extends Animal>
following types are within bounds of type-varaible A. And it allows :
House<Dog>, House<Animal>, House<Predog>, House<>
so intersection is
House<Dog>, House<Animal>, House<>
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6 months, 4 weeks agoASPushkin
6 months, 2 weeks agoASPushkin
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7 months ago