antenna theory analysis and design

mistake, you need to try to prove it. (56) If you use inheritance in object-oriented design, ask yourself two questions: (1) is the derived class A special type of the thing it inherits from? (2) is the base class part of a derived class? (57) If you find multiple inheritance relationships in an object-oriented design, make sure that no base class is actually a derived class of another base class. (58) In

division, domain model, key class diagram, internal interface and external interface specifications.5. Conclusion Friends who have played real-time strategic electronic games all know when to mine, how many farmers will find the greatest efficiency, when to develop troops to restrain each other, and when to investigate and expand, the best advantage can be achieved only when multiple types of troops are involved. The architecture design is the proces

There are still many things worth learning about integrated wiring systems. Here I will explain the requirements analysis, system functions, system design basis and design principles of integrated wiring systems, I hope you will have a better understanding of the Integrated Wiring System. With the rapid development of computer networks and communication technolog

from other classes in the system domain. (20) Do not turn the operation into a class. Question any class whose name is a verb or a derived automatic word, especially one that has only a meaningful behavior. Consider whether the meaningful behavior should be migrated to a class that already exists or has not yet been discovered. (21) We often introduce proxy classes when creating an application's analysis model. In the

from other classes in the system domain. (20) Do not turn the operation into a class. Question any class whose name is a verb or a derived automatic word, especially one that has only a meaningful behavior. Consider whether the meaningful behavior should be migrated to a class that already exists or has not yet been discovered. (21) We often introduce proxy classes when creating an application's analysis model. In the

: Analysis of the age of some users, education, knowledge level, rational perceptual components, gender, family background, personal growth environment, the depth of the industry into the use of the client brand, operating system, browser and its version, operating habits, consumption capacity, personal likes and dislikes, region, Access time, stay time, stay page, operation language and other information because of different needs to

system domain.(20) Do not turn the operation into a class. Question any class whose name is a verb or a derived automatic word, especially one that has only a meaningful behavior. Consider whether the meaningful behavior should be migrated to a class that already exists or has not yet been discovered.(21) We often introduce proxy classes when creating an application's analysis model. In the design phase, w

classes in the package should be closed together for changes of the same class nature. If a change affects one package, it will affect all classes in the package, without any impact on the other packages. (9) Put the relevant data and behavior in a centralized position. Designers should be aware of objects that get data from other objects through operations such as get. This type of behavior implies that the rule of thumb has been violated. (10) Placing irrelevant information in another class (

I have been working for three years. To be honest, I have never studied object-oriented.ProgramDesign, but some emotional understanding in some work plus some so-called theory. Reading a book 《 Head first object-oriented design and analysis " , The story in the book vividly describes OOA D I would like to take this opportunity to summarize what I learned and sha

the upper-left and lower-right corners). So for each row y (except for the first and last lines), the x-coordinate of the three path corresponds to: X1[y] TopCoder Topics for Practice: MINIPAINT-SRM 178 Div 1 OtherWhen reading a topic and starting to try to solve it, first look at its limitations. If the requirement is resolved in polynomial time, then the problem is likely to be solved with DP. In this case, the most important thing is to find the "state" of the problem and the "

and calmness. Geometric embellishment using yellow, blue, in the middle with a small amount of white as a blend, tone bright, creating a lively, relaxed atmosphere. Three This group belongs to the same class. Point line layout : The circular pattern exists in the form of dots, horizontally symmetrical and set, appearing rigorous and rational. Text headings exist as lines, forming p

The original business process platform approval sheet uses the idea of horizontal table vertical storage, where the data for the business forms used by all processes exists in a physical table, and each data record in the table contains the field information for the column definition and value,column, defined by the definition table. This approach is implemented, it is necessary to use code for data assembly, more cumbersome. When the form is large, the interface shows a slow performance. This s

, the so-called bifurcation. In order to prevent the generation of multiple chains, Ethereum uses the **ghost protocol * * (greedy heaviest observed subtree), that is, to select a complete calculation of the path, the larger the block number, the longer the path, indicating the more the calculation of mining consumption. Because success confirms that a new block will be rewarded with a certain amount of ethereum, choosing the main chain is optimal from the perspective of economics and game

-mail protected]); the teacher after the examination given everyone to add points score.Because the teacher's personal affairs, delay everyone study, please forgive us.Personal Goal SettingEach classmate, have to think about their career planning, summer vacation do what internship, what to do after work. If you have doubts, you are welcome to exchange.Every one of us needs to continue to learn and grow, you need, teachers also need. The teacher plans to participate in the "MOOC Curriculum

This paper hopes to get some thoughts through the comparative analysis of the homepage of the social web site, and share with you the excellent design principles of improving the registration conversion rate of social-networking websites. Generally speaking, the user registration conversion process consists of the following parts: 1. To attract users to register the content of the homepage; 2. Simple and

Tags: view ash difference requirements experimental structure test scores are different andWhat's the volume database? A database is a collection of large amounts of data that are stored on your computer that can be shared by the organization Then we should solve two problems. First how to save What's the second deposit? Third how to take IV How to update So what kind of data structures are designed to implement what functions are closely related Then see the title can be thought of is the stude