循环继承和接口 - 当B类实现A接口时，A类不能实现B类接口 [英] Cyclic inheritance and interfaces - class A can't implement class B interface while class B implements A interface

问题描述

我有：

public class A implements BListener {
    public interface AListener {}
}

public class B implements AListener {
    public interface BListener {}
}

因此，如果我理解正确，则会发生循环继承，因为：

So, if I understand correctly the cyclic inheritance happens because:

编译器转到 A 并说嘿，A实现BListener，让我们去找BListener！

然后当它试图找到BListener时，它最终会到达 B ，它说：

Then when it tries to find BListener, it eventually gets to B, which it says:

嘿，BListener，A需要在B里面！但是等待！B需要AListener！让我们去找AListener！

然后它到达A，重复一遍。我做对了吗？

And then it gets to A, repeat. Did I get this right?

顺便说一句，这个编译错误发生在Android开发上。

By the way, this compilation error happened to me on Android development.

推荐答案

它可能有助于把它画出来。

It may help to draw it out.

              >A 
is part of  /     \    inherits
                   V             
   AListener        BListener
           ^
  inherits  \     /    is part of 
               B<

一个可爱的圈子。如果没有其他已经存在的话，你就无法创建其中一个。

A lovely circle. You can't create one of them without the others already existing.

编译器是否是咖啡追逐它自己的尾巴时ADHD高的松鼠？

Is the compiler a squirrel with ADHD high on coffee chasing it's own tail?

不，因为松鼠不会停止（直到咖啡因用完为止）。编译器会查找然后放弃。

Nope because a the squirrel would not stop (until the caffeine ran out). The compiler looks for this and then gives up.

注意：Eclipse有一个允许这种设置的错误。

Note: Eclipse has a bug which allows this setup.

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