Introduction - If you have any usage issues, please Google them yourself
a Chapter 10, Note objects, classes, class structure, the basic concept of news? A : Object : objective entities in the problem domain of the abstract. Category : with the same or similar nature of the target is the abstract category. Class Structure : the structure type is usually a general-specific (classification structure) overall--- abstract (assembled) : Communication between the object structure. 2, object-oriented features and elements? A : characteristics : consistency, polymorphism, classification and inheritance. Elements : sharing, Packaging and abstract.