Java
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Explain in detail the conversion between CDM, PDM and SQL of PowerDesigner
Explain in detail the conversion between CDM, PDM and SQL of PowerDesigner I used PowerDesigner to do some auxiliary w…… -
On the understanding of DAO design pattern
In order to reduce the coupling, a design pattern of Dao encapsulating database operation is proposed. It can separate…… -
Singleton pattern of Java design pattern
Singleton pattern is also called single shoulder pattern. It is also a creation pattern. It is the most commonly used …… -
Maven learning – first glimpse
Recently, I worked as an intern in a company. I still don't know the development process of the company because I just…… -
Two methods of automatically generating constructors in eclipse
How to automatically generate constructors in eclipse eclipse is a very good ide. I feel that the development efficien…… -
More detailed introduction to JNI
In Java, sometimes we have to use code in other languages, such as: 1. Your application needs to access various featur…… -
Detailed explanation of HBase shell command in Hadoop
Detailed explanation of HBase shell command in Hadoop HBase contains shells that can communicate with HBase. HBase use…… -
Spring boot actual local jar package reference example
In some cases, you can't directly download the required jar packages through Maven warehouse. You can only download th…… -
Detailed examples of Hadoop multi job parallel processing
Detailed examples of Hadoop multi job parallel processing For Hadoop multi job task parallel processing, after testing…… -
Static and dynamic initialization of one-dimensional and two-dimensional arrays in Java
Today we're going to talk about arrays in Java, including static initialization and dynamic initialization of one-dime…… -
Example of PowerDesigner connecting to database
Example of PowerDesigner connecting to database PowerDesigner connects to the database roughly as shown in the followi…… -
Java implementation of a simple English text word translator function example
This paper describes the implementation of a simple English text word translator in Java. Share with you for your refe…… -
Java method of converting numbers to uppercase
Java method of converting numbers to uppercase explain: Convert the numerical amount into words as follows: If you hav…… -
Explain the example of HDFS multi file join operation in detail
Explain the example of HDFS multi file join operation in detail Recently, when processing HDFS files, I encountered mu…… -
Java servlet based encoding / exception handling (detailed explanation)
1. Servlet output Chinese (1) Why are there random codes? out. When println method is output or the form is submitted,…… -
Method for shell script to run Java program jar
When deploying projects on Ubuntu, we often start programs through a shell, or even call Java programs regularly throu…… -
Three ways to implement interface verification in Java
This paper introduces three ways to implement interface verification in Java, mainly including AOP and MVC interceptor…… -
Data access object layer (DAO) code example using JDBC
Java is an object-oriented language. When operating data, developers are usually more used to facing a specific type o…… -
Apache Commons math3 exploration of polynomial curve fitting implementation code
In the last article, we introduced the numerical integration example code of Apache Commons math3. Here we share the r…… -
How to obtain hexadecimal data in Java parsing DICOM diagram
preface In a recent project, it is necessary to use java to analyze DICOM pictures. DICOM is widely used in radiation …… -
5 tips for using java APIs
This paper introduces some simple and easy-to-use skills about Java API security and performance, including some sugge…… -
Adapter pattern of Java design pattern notes
Adapter mode: The adapter pattern transforms the interface of a class into another interface expected by the client, s…… -
Proxy mode of Java design pattern notes
Proxy mode: The proxy pattern is the structure pattern of objects. Proxy mode provides a proxy object for an object, a…… -
Summary of common Java commands
This article mainly shows you the commands commonly used in Java programming. Let's see the specific content below. 1…… -
Explain vector in Java
Vector implements the abstractlist abstract class and list interface. Like ArrayList, it is based on array storage Vec…… -
Java knapsack problem solving example code
Knapsack problem mainly refers to a given capacity knapsack and several items with certain value and weight. How to se…… -
Basic knowledge of JNI language
Introduction to JNI JNI is the abbreviation of Java Native Interface, It provides several APIs to realize the communic…… -
Java programming redisson implementation of distributed lock code example
Recently, due to my busy work, I haven't updated my blog for a long time. Today, I'll bring you an article about redis…… -
Java array and arrays class operation instances on arrays
There are two ways to initialize arrays Static initialization: during initialization, the programmer displays the init…… -
Java implementation of statistical character algorithm example
This paper describes the statistical character algorithm implemented in Java. Share with you for your reference, as fo…… -
Java implementation of custom date selector method example
preface This article mainly introduces a date selector written by Java swing, Swing is a GUI toolkit designed for Java…… -
Method and steps of packaging and deployment of Maven multi module project
The general Maven multi module engineering structure is shown in the figure below. The figure is divided into Dao data……