5 ms·
I could be missing something but my example does as well since it's a method level generic: Name nameKey = ...; Age ageKey = ...; Optional<String> nam
by jhhh 5y ago
I could be missing something but my example does as well since it's a method level generic:
Name nameKey = ...;
Age ageKey = ...;
Optional<String> name = db.get(nameKey);
Optional<Integer> age = db.get(ageKey);
- Mehdi2277 5y agoThe difference is your keys are types. Dependent types are about generics where the keys are allowed to be values. You can not in Java directly do, Optional<1> and Optional<“Name”>. You can only have types as arguments. C++ has some dependent types in it allows you to have generic arguments be ints std::array<…, 4> but it still does not allow most values as generic type argument.