Inheritance and Polymorphism
9.2 Calling the Superclass Constructor
9.3 Overriding Superclass Methods
9.4 Protected Member
9.6 The object Class
9.7 Polymorphism
9.8 Abstract Classes and Abstract Method
9.9 Interfaces
9.2 Calling the Superclass Constructor
9.3 Overriding Superclass Methods
9.4 Protected Member
9.6 The object Class
9.7 Polymorphism
9.8 Abstract Classes and Abstract Method
9.9 Interfaces