Question: java An advantage of inheritance is that: 1.All methods, both public and private, can be inherited. 2.All instance variables can be uniformly accessed by subclasses

java

An advantage of inheritance is that:

1.All methods, both public and private, can be inherited.

2.All instance variables can be uniformly accessed by subclasses and superclasses.

3.Objects of a subclass can be treated like objects of their superclass.

4.None of these.

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