Final answer:
A subclass cannot override an inner class of its superclass, but it may inherit, extend, or define a new inner class with the same name, which shadows the inherited one.
Step-by-step explanation:
The question relates to whether a subclass in an object-oriented programming language can override an inner class that's defined within its superclass. The answer to this question is No. In object-oriented programming, a subclass can override methods of its superclass, but it cannot override the superclass's inner class itself. Instead, a subclass may inherit the inner class, extend it, or define a new inner class with the same name, which would shadow or hide the inherited one. An inner class is associated with an instance of its enclosing class and can access its members. Overriding pertains to methods and, depending on the language, sometimes attributes, but not classes themselves. What the subclass can do is to define another class within it, potentially with the same name, if it follows the scope rules of the programming language being used.