specifications, but the fifth time the advent of homework let me have a taishanyading-like feeling. The last elevator work, the first use of multi-threaded to deal with practical problems, seniors learn elder sister Oo Most difficult one of the job is worthy of reputation. Until Tuesday night because of the multi-threaded security understanding is not profound, the author's program still has a little bit of bug. Due to the limited energy, the last bu
Let's take a look. It's all oo, and it seems very esoteric. Actually, what is oo? What is not oo?Take yourself for example. You are an o, the second o in oo. Look at yourself. You have your own methods and attributes, at the same time, you cannot leave the category of "person". Although everyone is different, are you a
OO mode-Composite, oo-composite
The combination mode is also called the "part-whole" mode. In this way, the definition is obvious, which corresponds to the knowledge of data structures, combine objects into a tree structure to represent the "part-whole" hierarchy.
First look at the class diagram:
First, let's analyze this class chart. Leaf and Composite are of the same generation and inherit from the paren
input from the keyboard to print,
Even if the encapsulation of keyboard and print has been done very well, if the keyboard and print are directly used in the copy module,
Copy is hard to be reused by other application environments (such as when output to a disk.
Solution:
To solve the above problem, Robert C. Martin's proposed the Dependency inversion principle (DIP) principle designed by oo.
Dip provides a solution:
An abstract interface
Come over and look, it's all oo, it seems very esoteric, actually, what is OO? What isn't oo?
Take yourself, you are the second o in a o,oo, look at yourself, you have your own methods, attributes, but at the same time you can not be separated from the "people" this big O category, although everyone is different, but a
When I first designed the software using OO technology, I made all the mistakes a designer could make. It is a foreign outsourcing project, the foreign responsible for functional design, our company is responsible for programming, coding and testing.
The first important mistake was that I didn't seriously read the design instructions. Functional point design does have some problems, according to their design, an important process is not achievable. S
In our familiar OO language, you can divide data and methods into different levels of access, such as internal, visible, and externally visible, through the access control modifiers private, protected, public, and so on. In this paper, we discuss the topics of encapsulation, type system and contract programming from a more special encapsulation-related example. Let's start with the example:
public class Person { private int _money; public vo
When I was a sophomore, I studied Java at school,The most awesome oo idea, with 3 pages of paper is finished, or Tsinghua University Press.Later all by themselves Chew video, chew code to understand what is called OO.Learn Python now and learn it in your own way:The basic of OO is encapsulation, inheritance, polymorphism.The first is inheritance:Define a class:Python code
Class Bird (object):
H
Intent
Define a uniform set of Gao Jie surfaces for a stack of interfaces in the subsystem, making subsystems easier to use.
Introduction
The façade is commonly used in two places, the first of which is to wrap the original program-oriented system using a façade into OO, such as the MFC wrapper Win32 API, and the second is to package the original complex OO system into simpler
When I was a sophomore, I studied Java at school,The most awesome oo idea, with 3 pages of paper is finished, or Tsinghua University Press.Later all by themselves Chew video, chew code to understand what is called OO.Learn Python now and learn it in your own way:The basic of OO is encapsulation, inheritance, polymorphism.The first is inheritance:Define a class:Python code
Class Bird (object):
H
Javascript
OO JavaScript is not advanced, trouble on Google out of the Chinese people to introduce the article often RR, and the argument between the different, put together let people see the head big.Here is a simple example of how to use OO JavaScript to make sense of simplicity.
1. A rather streamlined example
Defining the Circle Class{ THIS.R = radius;}Circle.pi = 3.14159;Circle.prototype.area = func
Http://www.cnblogs.com/tsoukw/archive/2008/09/11/1288942.html
Since the advent of Java, C #, and other languages, OO has become a great honor. For a while, "the motherland has a vast variety of O ".
I have to say that the idea of OO is indeed a fresh sensation compared with the previous software design methods. However, I am afraid it is worth discussing. At least in business application or oriented-data ap
The four basic features of inheriting encapsulated polymorphic abstraction in JAVA Oo and being named Object-oriented programmingEncapsulation hides the internal implementation mechanism of the class so that it can change the internal structure of the class without affecting the user's premise , while protecting the dataInheritance is to reuse the parent class codePolymorphism refers to the ability of an object to have multiple forms. Subclasses of a
I found that today, when Oo and UML are almost the same, many system analysts still have a thorough understanding of OO and UML, and even many system analysts who have been using UML for a long time.
So I plan to write a series of articles to summarize my work experience over the years. It is an enlightening function for beginners. I also hope to give a brick-and-mortar look and discuss it with prawns and i
I found that today, almost Eminence Oo and UML, there are still a lot of system analysts who have a smattering of Oo and UML, and even many system analysts who have been using UML for a long time.
So I intend to write a series of articles, will be a summary of the work experience over the years. For beginners to play a role in the Enlightenment, but also hope to throw bricks, and all the way prawns togethe
this class in one of the constructor methods to achieve the code reuse of the construction methodThis ();This (age);Note:this () can only be written in the first sentence of this class of construction methodOne. array of reference types: A. syntax:element type [] Array name = new element type [length];Student [] allstus = new Student [5]; Initializing an arrayAllstus[0] = new Student (); Initializing a reference type elementAllstus[0].setname ("Zhang San"); Set method Assignment Value B. The
Http://aralejs.org/class/docs/competitors.htmlHttp://javascript.crockford.com/prototypal.htmlHere is another formulation:Object.prototype.begetObject = function () { function F () {} f.prototype = this; return new F ();}; NewObject = Oldobject.begetobject ();2007-04-02objectthe problem with the function was that it was global, and globals is clearly problematic. Object.prototype.begetObjectthe problem and it trips up incompetent programs, and it can produce unexpected results when is be
This document is referenced from the C + + and object-oriented Numeric Computing for scientists and Engineers.PrefaceThe main issues discussed in the book are object-oriented numerical programmingPrior knowledge of analysis and linear algebra is required before readingContains the CG (conjugate gradient) and GMRES (generalized minimum residual) algorithm, where the CG and GMRES algorithms will be implemented with different matrices (full matrix, diagonal matrix, sparse matrix) using the Inherita
A few years ago, SAP basis 4.6 extended the OO function for ABAP, which is a traditional ABAP
Program Members are in trouble. First, for ABAP programmers, they can finally use the OO development method to gain potential value to improve development efficiency and maintainability of the developed program. However, abaper, who has been accustomed to process-oriented programming, is not so easy to quickly swi
Preface:
During study-Erlang, I occasionally see an attack on "oo ".Article, Instantly trigger a bit of your feelings, write it down, as a point of personal opinion learned for N years "oo" summary.
For the original article address, see:
Http://erlang-china.org/misc/why_oo_sucks_cn.html
The author wrote four major things to criticize "oo", probably
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