[PDF] a class's private helper methods may be called only by the class's other methods

  • Can a private helper method be called by a class user?

    No such restriction exists. A private helper can be called from any other method of the class, whether public or private. A public member method may not call another public member method.

  • Can a class private helper method be called from main which is defined in another class?

    A class' private helper method can be called from main(), which is defined in another class. false, private methods can only be called inside their respective class. A private helper method typically helps public methods carry out their tasks.

  • Is OK to any of a class's methods from its constructors?

    It's OK to any of a class's methods from its constructors. When you construct a subclass object, its constructor first calls one of the direct superclass's constructors. If the superclass constructor calls an overridable method, the subclass's version of that method will be called by the superclass constructor.
  • A subclass does not inherit the private members of its parent class. However, if the superclass has public or protected methods for accessing its private fields, these can also be used by the subclass. A nested class has access to all the private members of its enclosing class—both fields and methods.
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