为什么我们不能覆盖静态和最终方法？ [英] Why is it that we cannot override static and final methods?

问题描述

我试图理解为什么我们不能覆盖静态和最终方法。我没有得到它背后的目的。

I am trying to understand why we can't override static and final methods. I do not get the purpose behind it.

推荐答案

final 方法无法覆盖，因为那就是 final 旨在：它是一个标志，不要覆盖它。

final methods can't be overriden, because that's what final is designed to do: it's a sign saying "do not override this".

static 方法无法覆盖，因为它们永远不会以多态方式调用：当你调用 SomeClass.foo（）时，它会总是是 foo SomeClass 的方法，无论是否有另一个 ExtendedSomeClass 有一个更加常规的 foo 方法。

static methods can't be overriden, because they are never called in a polymorphic way: when you call SomeClass.foo() it will always be the foo method of SomeClass, no matter if there is another ExtendedSomeClass that has a much groovier foo method.

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