chatbot logic

The Logic tab of struts can determine the content of a Web page based on specific logical conditions, or iterate through the collection elements, and the Html,bean tag is the most commonly used three tags for struts applications. Its function is mainly to compare operations, string matching, to determine whether the specified content exists, Loop through the collection for request forwarding and redirection, the following specify the purpose of the la

Implementation Background The series has been on the ground for so long that no business code has been written. In fact, I think so, because the business code of different game items is very large, business logic only you can not imagine, no planning greatly unexpected. If you want to be a more aggressive framework, the less business code is arguably the better. But think twice, still try to construct some game public business, also be the example co

Label:When we first get started with SQL, we filter to a row with a column value of NULL, typically in the following way: SELECT * from Table as T WHERE t.col=null www.2cto.com and in fact this kind of writing does not have the desired result. The workaround we found online at this time is to use: T.col is NULL. Although this method can get data, but I and some of the peers do not know why the t.col=null can not get a Col null row of this result.Recently I want to strengthen the knowledge of SQL

Since the release of sunflower Gantt chart, it has attracted the attention of many friends and mentioned many functional requirements, many of which focus on the provision and processing of data, our previous data was fully developed by referring to the data format of the project. However, with the development, we gradually realized that the XML format of the Project is a local application after all. Program You may encounter many problems when directly porting data to the network. Sometimes, we

same is 0, and the difference is 1 "! Input Operator Input Result 1 ^ 0 1 1 ^ 1 0 0 ^ 0 0 0 ^ 1 1 XOR logic Logical symbols of the XOR logic, suchFigure 2As shown in, the truth table is shown inFigure 1. The logic of XOR is: When AB is not the same, the output P = 1; W

Thinking logic of computer programs (26) and thinking 26 Packaging Java has eight basic types, each of which has a corresponding packaging class. What is the packaging class? It is a class that contains an instance variable and stores the value of the corresponding basic type. This class generally has some static methods, static variables, and instance methods to facilitate data operations. In Java, the basic types and corresponding packaging classes

Classic three-tier architecture: Presentation layer, business logic layer, and data access layerSpecific methods of differentiation1: Data access layer: The main view of your data layer contains no logical processing, in fact, his various functions mainly to complete the operation of the data files. Without having to worry about other operations.2: Business Logic Layer: mainly responsible for the operation

In many of the new enterprise system designs implemented with SQL Server, System architects need to make decisions that are critical to the positioning of data structures and management application logic. SQL Server has its own programming language (Transact-SQL, or TSQL) that developers can use to manage data access, code transaction logic, and transaction control. using TSQL, developers can create a sav

There are 2 completely different ways to design Java enterprise Programs, one of which is the adoption of a standard EJB2 implementation approach (approach). I prefer to call this approach a heavyweight implementation, and when you use the heavyweight implementation approach you need to use session beans and message-driven beans (message-driven bean) to implement the business logic. You can also use Daos (data Access object) or entity beans to access

In this article, a Nguestbook business logic layer is implemented. In the practical application, the business logic layer is very important, he carries the whole system the core part, is also the customer most attention part. This part of the implementation, usually requires the cooperation of technical experts and field experts. Of course, in the demo of this article series, because of the simplicity of t

Three-valued logical classes in C # The practical value of the three-valued logic has not been neglected, and in most books introducing relational database knowledge, it involves the discussion of NULL value and the three-valued logic. MSDN, however, gives a three-valued logic structure (struct) implemented in C #, which provides three-valued

Thinking logic of computer programs (64) and thinking 64 For file processing, we introduced the stream method, section 57 introduced the byte stream, section 58 introduced the ghost stream, and also introduced the underlying file operation method, section 60 describes random read/write files, Section 61 Describes memory ing files, Object serialization/deserialization mechanisms, and section 62 describes Java standard serialization, section 63 describe

The business logic layer is a layer dedicated to processing software business requirements. It is located on top of the database and under the service layer, and completes some columns of Domain Object CRUD, as a group of microservices provided to the service layer, the service layer is organized on the exposed to the performance layer, such as inventory check, usage validity check, and order creation. The business

Thinking logic of computer programs (23) and thinking 23 In the previous series, we introduced the basic data types, classes, and interfaces used to represent and operate data in Java. This section discusses enumeration types in Java. Enumeration is a special type of data. Its values are limited and can be enumerated. For example, a year has four seasons and a week has seven days, although classes can also process such data, enumeration types are more

Overview The business logic unit is provided in Oracle ADF, which is very practical in practical applications, the verification logic of the record varies depending on the field value of different records in the table. This article describes how to apply business logic unit. Requirement According to the job_id of different records in the Employees table, add diff

CSS from the perspective of linguistics, logic, and System Theory Liu Jianwen, http://blog.csdn.net/keminlau ) Key: linguistic Logic System Theory CSSIntroduction CSS is a document style description language. As a language, CSS has basic elements of the language, such as syntax and semantics. In addition, "programs" written with CSS are declarative language programs, this