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Three basic elements of object-oriented architecture: encapsulation, inheritance, and Polymorphism Five basic object-oriented design principles: Single-Resposibility Principle) Its core idea is: A class, it is best to do only one thing, and only one will cause its changes. T
In Ood (object-oriented design), abstract classes or interfaces are often used, "note: in C + +, there is no concept of interfaces, only abstract classes, and both exist in Java." In the process of use, there may be many people think that the interface and abstract class is similar, and then think of course that can be completely replaced with each other. In fact
One1, the core of object-oriented thinking: Encapsulation, inheritance, polymorphism.2, the pursuit of object-oriented programming:Cohesion-poly low-coupling solution;Modular design of the code;3, what is the design mode:The clas
derived class. p103(53) Do not confuse the optional inclusion with the need for inheritance. Modeling an optional inclusion into a class where inheritance can lead to flooding. p108(54) When creating an inheritance hierarchy, try creating a reusable framework, rather than a reusable component. p112(55) If you use multiple inheritance in your design, let's say you made a mistake. If you don't make a mistake, you need to try to prove it. P120(56) If yo
Arthur J.riel once said that you do not have to strictly abide by these principles and will not be sentenced to religious punishment for violating them. But you should think of these principles as alarms, and if you violate one of them, the alarm will ring. So, whatever we do, we have to have a principle. Programming is no exception, the following describes PHPThe principle of object-oriented analysis
Pattern (analysis pattern, Architecture Pattern and design pattern) is a topic that we discuss extensively. It is researched to improve software reuse (CodeReuse and design reuse. Model development andOoLanguage development,OOADDevelopment of methodology andUMLDevelopment is closely related. In 20 Century 60 ~ 70 Age, the initial development period of object
the outside world.In General , process-oriented development is relatively easy, but it is not easy to deal with changes, object-oriented development is difficult, but it can better deal with the ever-changing world. Therefore, the modern software needs object-oriented devel
61 military rules of PHP object-oriented analysis design. (1) all data should be hidden inside the class. (2) a class user must depend on the common interfaces of the class, but the class cannot depend on its users. (3) minimize the elimination in the class protocol (1) all data should be hidden inside the class. (2) a class user must depend on the common interfa
1. To learn the design mode, first understand what the design mode is: 1. What is the design model? The design pattern describes a general solution to a type of common problems in the software design process. 2. What is an object-
inheritance in the design, first assume that you have made a mistake. If you do not make a mistake, try to prove it. (56) as long as inheritance is used in object-oriented design, I have two questions: (1) is the derived class a special type of the thing it inherits? (2) is the base class part of the derived class? (5
61 empirical principles of Object-Oriented Design Excerpted from the good revelation-Arthur J. Riel (1)All data should be hidden inside the class. P13 (2)The class user must be dependent on the common interfaces of the class, but the class cannot depend on its users. P15
Three basic elements of object-oriented architecture: encapsulation, inheritance, and Polymorphism Five basic object-oriented design principles: Single-Resposibility Principle) Its core idea is: A class. It is best to do only one thing and only one change that causes it. The
61 empirical principles of Object-Oriented Design Excerpted from the log of OOD, translated by BaO zhiyun, Arthur J. Riel "You do not have to strictly abide by these principles and violate them and are not subject to religious penalties. But you should regard these principles as warning bells. If you violate one of them, the warning bells wi
Object-oriented design patterns and principles 01. Introduction to Design Patterns:650) this.width=650; "title=" QQ picture 20150427231535.png "Src=" http://s3.51cto.com/wyfs02/M01/6C/0A/ Wkiol1u-wnmtuinbaacmezbs9jc247.jpg "alt=" Wkiol1u-wnmtuinbaacmezbs9jc247.jpg "/>Each pattern describes the problem of the stomach as
61 empirical principles of Object-Oriented Design Author: Arthur J. Riel "You do not have to strictly abide by these principles and violate them and are not subject to religious penalties. But you should regard these principles as warning bells. If you violate one of them, the warning bells will ring ." ---------- Arthur J. Riel (1) All data should be hidden i
in object-oriented design, ask yourself two questions: (1) is the derived class A special type of the thing it inherits from? (2) is the base class part of a derived class?(57) If you find multiple inheritance relationships in an object-oriented
need to implement personality, the specific object will be called.Encapsulation of ClassesThe responsibilities of low-level modules should not be done by high-layer modules, or the encapsulation of classes will be broken.The specifics of the encapsulation of classes in a program are:1. Duplicate the object that defines the class.2. Cross-use of various kinds of objects, the correct usage is that after one
What is object-oriented design? What content does it contain? What are the benefits it brings? What do you need to pay for it? In today's time, it seems silly to ask these questions, because almost every software developer knows how to use a certain object-oriented Programm
access methods defined in the public interface. A large number of access methods means that the relevant data and behavior are not centrally stored. (15) Be cautious about classes that contain too many non-communicating behaviors. Another manifestation of this problem is that many get and set functions are created in the public interface of the class in your application. (16) In an application that is composed of an object-
3 basic elements of object-oriented: encapsulation, inheritance, polymorphism Object-oriented 5 basic design principles: single Duty principle (Single-resposibility Principle) Its core idea is: A class, it is best to do only one thing, only a change that caused it. The princ
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