yahoo oo

cartestframework=Newcartestframework (); Cartestframework.buildtextcontext (carfactory); Icarfactory carfactory=Newtoyotacarfactory (); Cartestframework cartestframework=Newcartestframework (); Cartestframework.buildtextcontext (carfactory); }}Main PointThe Factory method pattern is primarily used to isolate the coupling between the consumer of a class object and the specific type. In the face of a specific type that is constantly changing, tight coupling relationships can lead to sof

ClassA class is a collection of sets of objects that have the same properties and behavior.1 Public classHomeWork1 {2 Public Static voidMain (string[] args) {3Myphone mp=NewMyphone ();4 Mp.call ();5 Mp.music ();6 Mp.photo ();7 Mp.video ();8 }9}The above is an example of a class declaration.ObjectAll things are objects, and objects are produced by my attention. A class is an abstraction of an object that is an instance of a class.PackageFolder...... To invoke a class in a package, you t

C # OO (elementary idea )., Inheritance, polymorphism, encapsulation In C #, In order to reasonably describe the laws of nature, object-oriented programming introduces the concept of inheritance, which is one of the most important concepts in object-oriented programming, defines how to create a new class based on the existing class. Inheritance:A subclass derived from a class has all the public attributes and methods of the class. The parent class is

used to concatenate operands, literals, or variables involved in an operation. The Java language supports the following operators:Arithmetic operators: +,-, *,/,%,++,--Relational operators: >,Logical operators:!,,| |Bitwise operator:,|,^,~,>>,Assignment operator: =Extended assignment Operator: +=,-=,*=,/=String Join operator: +Conditional operation symbol:?:An expression:An expression expression is a combination of operators and operands (recall that the operand is an object of operator manipul

have features that define them within the constructor.What is the difference between constructing a code block and a constructor function?Constructs a block of code: Initializes all objects, that is, all objects call a block of code that will be called as soon as the object is established.Constructor: is to initialize the corresponding object, it is targeted."Person p = new person ();"What does creating an object do in memory?1: Load the Person.class file of the specified location on the hard d

Through one months of study, I have a certain understanding of the Java course, what the face object, inheritance, encapsulation, polymorphism, abstraction, etc. are more understanding. Through the study I understand that Java is a simple language, because its thinking is to conform to human thought. Human thought and computer language common, there will be no greater conflict, it is very convenient to understand. Through the last two weeks of project training, I learned the three-tier architect

("Drag Pull the driver to drive the tractor. "); }} public class Aircraftdriver:idriveable {public void Drive () {Console.WriteLine (" Pilots can fly airplanes. "); }} public class Driverschool {public static void Main_1_5_1 ()//main_1_5_1 {ilist(2) Rules: The interface Isolation principle emphasizes that the interface should be implemented as a small interface with a single function The interface supports multiple inheritance , which can be used for va

total interface, the interface should be cohesive , should avoid the "fat" interface; Do not force reliance on the use of the method, which is an interface pollution;(2) Basic method: Separation of Delegates and multiple inheritance (recommended)　　(3) DEMO: Use computer scene for people of different agesView Code(4) The rules suggest:① the interface with similar functions, which may cause contamination of the interface;② interface isolation ensures that the effects of system expansion and modif

represents the unified management of responsibility, on the one hand represents the effective isolation of the relationship; (2) About abstraction and specificAbstract--can be used for specific layer reuse and overwrite-stabilityDynamic and variability of system3.2.3 Back to dependency inversion Relies on abstraction, programming on interfaces, programming for abstraction! 3.2.4 IOC and DI1. Control inversion (IOC), the controller of the code is placed in the system control

ClassThe Class keyword provides a containment mechanism that combines the data and the methods of manipulating the data to be used as a built-in type.A class can contain a private part that is accessible only to its members and friend classes, and the public part can be accessed anywhere in the program.Constructors have duplicate names with classes. Destructors are used to define operations when objects are destroyed.class pt2d { // class for 2D pointsprivate: // private membersdouble x; // x co

This document is referenced from the C + + and object-oriented Numeric Computing for scientists and Engineers.1. Basic TypesIn C + +, the declaration of a variable does not have to be placed in the front of the program like C and Fortran, and can be declared before the variable is used, increasing the readability of the program.There are Boolean type variables in C + +, and the keyword is bool.The numeric_limits template function in standard library in C + + can return the maximum and minimum va

Some time ago to see someone "about a C # on the computer Problem oo", and then someone used the decorative mode to do this problem, I here to a strategy model, not accustomed to nonsense directly on the code, do not know how to calculate the strategy model, please expert advice. 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 namespace ConsoleApp 5 { 6 public class program 7 { 8 static void Main (string[] args) 9 {

In my design Journey: Strategy pattern (primary) (C + +) (OO C + +) (Template C + +), we used strategy pattern to let graph Er can draw triangle, circle and square Because the need to change again,:D, we hope that Grapher will be able to print the text in each shape, the implementation of the results are as follows Draw Hello Shape!! in Square Draw Hello C++!! in Circle In order to achieve this demand, we can change the IShape interface class IS

Design Pattern OO Principles 1, package change--single responsibility principle 2, multi-use combination, less-use inheritance-the principle of the Richter replacement 3, for interface programming, not for implementation--interface isolation principle 4, strive for loosely coupled design between interactive objects--Dimitri law 5, the class should be open to the expansion, to modify the closure--opening and closing principle 6, d

PHP4's true OOAuthor Johan Persson is the developer of the famous JpGraph chart class library in PHP. This article is a summary of several small issues that need to be paid attention to during object-oriented development in PHP4.Translation: Binzy Wu [Mail: Binzy at JustDN dot COM]. The level is limited. Welcome to explore.-2-4.IntroductionThe objects in this article are those previously used more mature OO [1] languages, such as Eiffel, Java, C # [2]

Some basic features of OO Package (encapsulation) Inheritance (inheritance) Polymorphic (polymorphism) Poly (cohesion) Coupling (COUPLING) 5 Principles for OO design (SOLID) Single Duty principle (Srp-single Responsibility Principle)A CLASS should has only one REASON to change. Open closure principle (ocp-open-closed Principle)You should is able to extend a classes

Programmers who have transferred from ASP or VB are certainly not familiar with OO thinking before. Happy to transfer from the heavy particle space to this article, hoping to help everyone.In the process of adopting the OO software development method, many people naturally focus on the technical layer, for example, using the OO decomposition (object-oriented deco

test-driven development methods ). OOD promises a series of benefits (flexibility and reusability and maintainability). It is designed and developed in OO language. To achieve these benefits conveniently, there are a series of principles to follow, such as SRP, OCP, LSP, ISP, etc. SRP (single responsibility principle) maintains the simplicity of the class. The class should not take on more than one reason for its changes. Otherwise, the class should

Also discussed: do not have to be non-oo I read a discussion:Http://www.cnblogs.com/yimlin/archive/2006/11/30/578333.htmlSome feelings: not all actions must belong to a specific object. Some actions seem inappropriate in any object, so they should be put there separately. There is no need to create an object, it cannot be attached to an object. According to the OOP method, the logical architecture of software can be divided into the following layers:

Introduction OO design is more than just using an OO language. over the years release bright programmers have built up a collection of rules that help to build well-designed maintainable code. this article lists the main rules of OO programming. the intention is to inspire the reader to think about these rules and make further reading. there is a lot of material