object oriented analysis and design ebook

Seven main object-oriented design principles Opening and closing principles : In the face of demand, changes to the program is done by adding new code , rather than changing the original title dependency Reversal Principle : High-level modules should not rely on the underlying modules, two should be dependent on the abstract, the abstract should not rely on the

Js object-oriented static method and static property instance analysis, js instance analysis This article describes the js object-oriented static methods and static attributes. Share it with you for your reference. The specific

Object-Oriented design principles:Is the core of programming for Oops (object-oriented programming System, Object-oriented program design sy

Object-oriented analysis is a process of acquiring and understanding user's needs, analyzing the problem domain, confirming and establishing the conceptual model of problem area. and object-oriented design (OOD) is from the perspe

The advanced realm of learning JavaScript is to use object-oriented methods to call JavaScript. A new article: Comparison of strings in JavaScript The Application of face object is quite extensive. It has long been used in desktop programming and has mature applications, such as C ++, Java, and C. The emergence of Web programming is much later, so that the curren

What is the data Access object pattern? The data Access object design pattern describes how to create an object that provides transparent access to any data. Application problem and solution of data access object pattern For those who have also learned PHP and MySQL, the d

I. Design Principles1. Dependency inversion principle (DIP) High-level modules (stability) should not depend on low-level modules (changes), both of which should depend on abstraction.Abstract (stable) should not depend on implementation details (changes), and implementation details should depend on abstraction. 2. Open and closed principle (OCP) Class modules should be extensible, but cannot be modified; open to extensions and closed to changes

analysis, object-oriented will bring two benefits that designers have been pursuing: 1. Reduce the complexity of the system. As we all know, with the rapid development of hardware, the computer's computing power is getting more and more powerful, and people expect more and more software, and the complexity of software increases exponentially with its scale. Soft

package, it will affect all classes in the package, but it will not affect other packages. Package coupling principle No-ring dependency principle (Acyclic Dependencies Principle, ADP) The package dependency does not allow loops. Stable-Dependencies Principle, SDP) Dependency in a stable direction Stable-abstractions principle (SAP) The abstraction level of the package should be consistent with its stability. Old ti

The object-oriented design principle is the core of OOPS (object-oriented programming system, Object-Oriented Programming System) programming. However, most Java programmers pursue

Object Memory analysis, I have been learning more vague, today time to tidy up, hope to clarify.First of all, where does the memory analysis come from, which is more obscure to those of us who are just touching Java, starting with the new keyword.The new keyword means that creating an object or instantiating an

student and could be used to solve a multi-dimensional equation immediately. Later, structured programming was developed to split the code into multiple modules, this enhances code reusability and facilitates debugging and modification, but the structure is much more complex. The earliest programming method was process-oriented. It was very intuitive for beginners to understand quickly. Later, with the object