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Editorial Team
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Asked: 2026-06-16T13:21:26+00:00

Suppose I have following class structure: class Base {} class A extends Base {}

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Suppose I have following class structure:

class Base {}
class A extends Base {}
class B extends Base {}
class C extends Base {}

I want to write method, that accepts instances of A and B but not instances of C.
Can I achieve it in Java?

I know this is not good inheritance situation (A and B should have common parent different from C), but I am only curious is in Java way to handle situation like this.

EDIT:
!!!
I know that better inheritance will resolve problem. I am only curious, if Java have some standard mechanism to solve problem like that.
!!!

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1 Answer

  1. Editorial Team

    I guess the answer to your questions is “No, java does not have a standard way of dealing with such a problem”. And if you have this problem then you can look at other answers here, like fixing the inheritance or using the clever technique given by MrSmith42.

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