design patterns reusable object oriented

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="

base classDo not let classes derive from specific classesA variable cannot hold a reference to a specific class6: Abstract Factory Method mode provides an interface for creating a family of related or dependent objects without having to specify a specific class.The factory method pattern uses inheritance: Delegate the creation of objects to subclasses, subclasses implement factory methods to create objects, and abstract factory method patterns use a

"/"; return NewChu ($a,$b); Break; Case"%"; return NewQuyu ($a,$b); Break; } } } $j= Gongchang::d uixiang (3,2, "%");//Test Echo $j->js ();//OutputOutput resultsSecond, the design of six major principles1. The open-close principle is that the design should have good support for the extension, and the modification should be strictly limited.2. On the Richter scale also, the subclass mu

The solution is the organizational relationship between classes and mutual objects, including their roles, responsibilities, and collaboration methods. "Good Object-Oriented Design Patterns" are those that can meet "respond to changes and improve reuse" The object-

The design principle is a guiding and abstract concept. The design mode is a good practical experience to achieve the design principles. After a while of object-oriented programming. The first thing to learn is the design model.

is conceived out, so oriented to abstract design is in line with human thinking. In addition, this principle will be well supported by the OCP, and the abstraction-oriented design allows us to not rely too much on implementation, so that the extension becomes possible, and this principle is the cornerstone of another

personal characteristics, each card also according to the characteristics of individual to pick, I am a person who make clear, or find florist shop owner and gift shop boss do a VISITOR, Let flower shop owner according to the characteristics of mm choose a bouquet of flowers, so that the gift shop owner also choose a card according to the characteristics of each person, so much easier;Visitor pattern: The purpose of the visitor pattern is to encapsulate some action that is applied to a data str

PHP Advanced Programming Learning Note 2014.06.11 Design patterns are a set of reusable, most known, categorized purposes, code design experience Summary. Design patterns are used in order to reuse code, make code easier for othe

At the beginning, we did not have anything. Later, the technical staff developed object-oriented, design patterns, and more frameworks to facilitate development, maintenance, expansion, and management, tools, software, etc. This is all for better development and development of better products. All of these should not

engine does those things. First, try traversing the properties in B, but not the Name property. The request to find the name attribute is delegated to the prototype of the constructor of object B, which is b.__proto__ logged and points to B.prototype, and B. The prototype is set to an object created through new A (). The name attribute is still not found in the

highlighting function, I am writing" + Language.getname () + "program");}}Programminglanguage.java/** * Program Language class includes property name and set and get method * * @author Jesson * */public class ProgrammingLanguage {private String name;pub Lic ProgrammingLanguage (String name) {//TODO auto-generated constructor stubthis.name = name;} Public String GetName () {return name;} public void SetName (String name) {this.name = name;}}Test.java/** * Test class * @author Jesson * */public

=function () { the // ... - } - This. SetName =function () { - // ... + } - This. Setprice =function () { + // ... A } at //Object Public Properties - This. ID =ID - //Object Public Method - This. Copy =function () { - // ... - } in -}In OOP, there are two concepts: static properties and Static methods, both of which belong to the class, and not each

that defines a return type, without a doubt, a generic is a collection, but it is a collection that determines the type of storage object. This bypasses the boxing unboxing action and does not result in a unboxing error.It can be argued that the collection class is the base class part of the generic, and the newly introduced part of the generic is the polymorphic extension of the collection base class.In general, generics make the program performance

prototype programming paradigm If the object cannot respond to a request, it will delegate the request to its own prototype object.prototype , which is an empty object, every object we encounter in JavaScript is actually cloned from it. object.prototype is their prototype. Although we often use new to instantiate a functio

1. Design Pattern: Summarize the successful reusable design schemes from many excellent software systems. 2. abstract classes as transformation objects: abstract classes cannot use the new operator to create objects, but non-Abstract subclasses must rewrite all abstract methods, the object declared by the abstract clas

What is the appearance mode? By creating a façade interface before the set of required logic and methods, the design pattern hides the complexity from the calling object. Why Use Design Patterns: The reason for using an object based on the

int Jiafa (int a,int b){return a+b;}Call:f (5,3);Can be understood as a pointer to a function, which function the delegate points to, which function is represented by the delegateAllows functions to be passed as arguments //Defining Delegates Public Delegate voidSuibian (strings); classProgram {Static voidMain (string[] args) { //Delegate//parameterization of the methodSuibian s =China ; S+ = America;//+ = is the binding method = minus a method//calling a speech methodSpeak (s

Reprinted from: http://hi.baidu.com/wind_stay/blog/item/fe9db22c5b44b03e359bf75b.html Object-oriented, server architecture, and design patternsAnd seek out your friends.Original: Lu yueqiang copyright statement: all belongs to Lu yueqiang, and any transfer and reference must specify the sourcePrimary to internalN1 Server ArchitectureDesign Pattern of N 2, applic

Framework are special important for developing open systems, where both functionality and architecture must be reused should ss a family of related aplications. OO framework provide an important enabling technology for reusing both the architecture and the functionality of components.An OO framework is a set of collaborating object classes that embody and abstract design to provide solutions for a family o