是否可以在接口中实现本地方法？

Question

You often hear that methods in an interface have no implementation. However, in Java 8 it became possible to implement the default methods. But I'm interested. Was and is it possible to implement interface methods natively? ( native methods).

When the interview question is asked - "Is it possible to implement a method in an interface?" Answer - you can make a native method implementation, and since Java 8 it is possible to define a default method." How correct is this answer?

Answer 1

No, interfaces can't have native methods :

Note that an interface method may not be declared [..] with the modifiers final , synchronized , or native .

Technically that text is non-normative, because it only points out that this list does not contain the mentioned modifiers:

InterfaceMethodModifier :
(one of)
Annotation public private
abstract default static strictfp