head first design patterns 2014

Before looking at head first design mode, a C + + version is implemented according to the code in the book (Java version in the book), and the code is uploaded in https://github.com/clpsz/ Book-hfdp-code. At the time, because of limited capacity, there was no direct choice to see Gof's design pattern: The basis of reusable object-oriented software. In the last

development, principles, Patterns, and Practices"in a book. The dependency reversal principle is defined as follows: dependency reversal principle (Dependency inversion Principle, DIP): Abstract should not be dependent on details, details should be dependent on abstraction. In other words, you want to program for the interface, not for the implementation. You can use high-level interfaces as much as possible in the delivery of specific classes, in

operation of the program also has some help. It can be said that Fo-dicom uses the APM asynchronous programming model to simulate synchronous writes of DCM files, which take advantage of the asynchronous nature of the C # FileStream stream. About the FileStream class in "CLR via C #" in the 27.8.8 section of the detailed introduction, you can understand.Vi. References:The above analysis did not really find the answer I want, so follow up to continue to read the relevant books and materials, and

Design pattern as the programmer's "internal strength Heart", more and more attention. This is a popular version of 23 design patterns, with real life metaphor, so you can quickly understand the meaning of it.1, factory― chase mm without eating, McDonald's chicken wings and KFC chicken wings are all mm love to eat things, although the taste is different, but no m

Read this articleArticleBefore that, I would like to remind you that my article may not be referred to as a design pattern article. It can only be regarded as a design summary in my project. Here, I welcome everyone to discuss it with me. At the same time, I want to say that the purpose of my blog writing is to remind others of my experience. However, if the opposite effect is caused, it is against my origi

The term "Design Pattern" is widely used not only in C ++ but also in other computer programming languages. The famous Design Model Book head first has already sold well. "Big talk Design Model" also sells well. It's really hard for people who are engaged in computer programming to think about it. After learning a C ++

Design patterns for software development of the importance of self-evident, code reusable, maintainable, scalable is always the pursuit of software engineering! For me, a javascript person, it seems difficult to understand design patterns, and it may not even be used for Chettu only, with a small amount of interaction,

the terms I promise, you say?"Mary: "I have a crush on that one-carat diamond."Me: "I buy, I buy, still have?" ”Mary: "I have a crush on the villa by the lake."Me: "I buy, I buy, still have?" ”Mary: "I'm into that Ferrari car."My head is humming, sitting in a chair, a bite: "I buy, I buy, and there?" ”......Iterative sub-patterns: Iterative sub-patterns can sequ

. In the interpreter pattern, you need to define a hierarchy of command classes that represent grammars, which is a series of composition rules. Each command object has an explanatory method that represents the interpretation of the Command object. Any permutation combination of objects in the hierarchy of command objects is a language.16. iterator-I fell in love with Mary and was desperate to marry her.Mary: "If you want me to marry you, I have to promise my terms."Me: "What are the terms I pro

my Code slice public class man { private string head; private string body; private string foot; public String gethead () { return head; } public void Sethead ( String head) { this.head = head; } public String getbody () { return body; } public void Setbody ( String body) { this.body = body; } public S

."My head is humming, sitting in a chair, a bite: "I cut, I cut, and there?" ”......Iterative sub-pattern: Iterative sub-patterns can sequentially access an element in a cluster without exposing the aggregated interior representation. Aggregates are collectively called aggregates, and clustered objects are container objects that can contain a set of objects. The iterative sub-pattern encapsulates the iterat

love with Mary and asked her to marry her.Mary: "You want me to marry you and promise me the conditions."Me: "I promise you what I can say."Mary: "I have a crush on that carat diamond."Me: "I buy I buy it?" ”Mary: "I have a crush on the lake house."Me: "I buy I buy it?" ”Mary: "I'm into that Ferrari car."I sat on my head in a chair and said, "I'll buy it. ”...... Iterative sub-patterns: Iterative sub-

How to skillfully use the dark patterns in interactive design, we need more thinking and learning. Do not mind the user scold you rogue, that means you rascal's not clever. Today this good article takes you to see which looks very stupid actually very ingenious interactive design, the case all is from the domestic website/app, very has the reference. Some operat

Some time ago the company some colleagues in the discussion of the singleton mode (I am the most slag of one, are not plugged in the mouth t__t), this mode uses the frequency is very high, may be many people most familiar with the design pattern, of course, the singleton mode is one of the simplest design patterns, simple to simple, but in the actual use of some

, but it is rarely used in their coding design career. I think the main reason is that the learning of the design model is not enough, I haven't changed it into something in my own head. So when the problem changes to face, I cannot understand the problem because I cannot correctly analyze the problem and understand the problem, of course, it is impossible to sol

marry you, I have to promise my terms."Me: "What are the terms I promise, you say?"Mary: "I have a crush on that one-carat diamond."Me: "I buy, I buy, still have?" ”Mary: "I have a crush on the villa by the lake."Me: "I buy, I buy, still have?" ”Mary: "I'm into that Ferrari car."My head is humming, sitting in a chair, a bite: "I buy, I buy, and there?" ”......Iterative sub-patterns: Iterative sub-

. TfiremonkeycontainerThis unit was a small VCL component you can put on a VCL form, which hosts or embeds a Firemonkey form. Firemonkey lives completely fine inside the VCL host, rendering and animating perfectly. There is events for creating and destroying the embedded form, allowing you to control the embedded form ' s lifetime. BtmemorymoduleBtmemorymodule for Delphi allows a dynamic link library (DLL) to is loaded from memory without storing it on the Hard-disk First. Btmemorymodule is

provide an interpreter at the same time. The client can use this interpreter to interpret the sentences in the language. The interpreter pattern describes how to interpret these statements using a pattern design after having a simple grammar. The language mentioned in the interpreter pattern refers to any combination that any interpreter object can interpret. In the interpreter pattern, you need to define a hierarchy of command classes that represent

grammar and provideAn interpreter. The client can use this interpreter to interpret the sentences in the language. The interpreter mode describesHow to use pattern design to interpret these statements after having a simple grammar. Mentioned in the interpreter mode.Language refers to any combination that any interpreter object can interpret. In the interpreter mode, you need to define a representative grammarHierarchy of command classes, which is a s

of design patterns. This article first introduces the use of simple delegates.What is a delegate: a Delegate in C # (Delegate) is similar to a pointer to a function in C or C + +. In the blogger's words, a delegate is a reference type that allows a method name to be passed as a parameter. It defines the type of method, which can be said to be the abstraction of a method, then conversely, the method can be