跳过继承层次的方法和超超类的调用方法

Question

Is there any way to skip java inheritance hierarchy and call method of super super class?

I have 3 classes in java

X
Y extends X
Z extends Y.

Now is there any way to access any method of X directly skipping Y ?

Answer 1

Here Why is super.super.method(); not allowed in Java? They claim you cannot and there's a good discussion of why.

edit I'm assuming you have a situation like foo() is defined in X and Y and you want to call it from X in Z

Answer 2

Now is there any way to access any method of X directly skipping Y?

Practically no, theoritically yes. Following your example:

X
Y extends X
Z extends Y.

When you call a method of Z, it will call super() which will call method of Y if any and it will call super() too, which will call method of X in the end. I said yes, when method of Y does nothing different from X's, then it is as if it has no effect. But in practice, JVM follows the inheritance hierarchy to complete the calls, bear in mind that.

Answer 3

我想您可以使用反射API ，但这有点丑陋的IMO。

Answer 4

是的，您可以访问X的所有方法（私有方法除外）