Java
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Detailed explanation of volatile keyword in Java concurrency tutorial
introduction When it comes to multithreading, I think the most important thing is to understand the concept of a criti…… -
Using nail robot to push message to nail group based on Java
This article mainly introduces the use of nail robot to push messages to nail groups based on Java. The example code i…… -
Spring security test practice
introduction The security module of the test question management system uses spring security, and the code is transpla…… -
Spring boot JPA service layer code example
This article mainly introduces the spring boot JPA service layer code examples, which are introduced in great detail t…… -
Parsing process of reading XML file content through Java
This article mainly introduces the content parsing process of reading XML files through Java. It is introduced in grea…… -
Java uses socket to determine whether a service can connect to a code instance
This article mainly introduces how Java uses socket to judge whether a service can be connected. The example code is i…… -
Analysis of PDF file generated by Java based on rich text
This article mainly introduces the process of generating PDF files by Java according to rich text. It is introduced in…… -
Spring boot builds a file server to solve the problem of uploading and downloading multiple pictures at the same time
In normal business scenarios, it is inevitable to build a file upload server as a public service. Generally, only a si…… -
Spring process analysis of ActiveMQ message queue technology integration
This article mainly introduces the integration of ActiveMQ message queue technology and spring process parsing. It is …… -
Basic knowledge points of Java language and platform
Before using Java, we should first make clear the difference between the Java language and the Java platform. However,…… -
Writing examples of 7 singleton modes in Java version
preface Today, I saw a sentence in an article. Add V before single example DCL. Let me take a closer look at the singl…… -
Java code statistics applet
This example shares the Java code statistics applet for your reference. The specific contents are as follows You can t…… -
Java uses OTP dynamic password (changed every minute) for login authentication
Git address: https://github.com/suyin58/otp-demo Screenshot of dynamic code: In the background management system open …… -
Mybatis annotation to separate reading and writing from multiple data sources
First, you need to create two libraries for testing. I use master here_ Test and slave_ Test two libraries, both of wh…… -
Detailed explanation of spring annotation programming model
In spring, there is a concept called meta annotation, which realizes the "derivation" of annotations through meta anno…… -
Simple factory pattern example of java interface oriented programming
This paper illustrates the simple factory pattern of java interface oriented programming. Share with you for your refe…… -
Single linked list of leading nodes implemented in Java
Characteristics of linked list 1. It is stored in node mode and is a chain structure. 2. Each node contains the data f…… -
Java method example for initializing and filling arrays
Initialize and populate the array import java.util.Arrays; public class ArrayFilling { public static void main(Stri…… -
Java teaches you how to add a nice flag to your avatar
Today, the circle of friends is hot again. I heard that the reason is that @ Tencent's official website can get a gree…… -
Java file archiving and restore
This example shares the specific code of file archiving and restoration in Java for your reference. The specific conte…… -
Summary of practical cases of Java static method usage
This article describes the usage of Java static method with examples. Share with you for your reference, as follows: A…… -
Java 8 in-depth study
1、 Using the optional introduction 1.1. Code problem derivation NullPointerException is usually encountered when writ…… -
Use of test units in SSM framework spring integration JUnit process details
Problems and solutions in test class problem In the test class, each test method has the following two lines of code: …… -
Spring boot deployment process analysis (jar or war)
preface For the deployment of traditional SSM or SSH projects, they are usually packaged into a war package or a compi…… -
Detailed explanation of the implementation of the rejection policy of java thread pool
1、 Introduction jdk1. Version 5 adds JUC concurrent programming package, which greatly simplifies the traditional mul…… -
Parsing of Java byte stream from file input and output to file
If you need to copy a picture, a word, a RAR package. You can read the file as a byte stream and then output it to the…… -
The principle of future and futuretask in Java and its combination with thread pool
Future and future in Java are usually used together with thread pool to obtain the return value after thread pool retu…… -
Java design simple student management system
This example shares the java student achievement management system for your reference. The specific contents are as fo…… -
Java implements simple checkerboard archiving and reading functions
Recently, the archiving of playing Gobang has been studied. The main implementation is to save the Gobang chessboard o…… -
How does Java use optional and stream to replace if NULL judgment logic (jdk8 and above)
Through this article, you can replace the null check in business logic with very short code, and it is easy to log or …… -
Method and steps of realizing synchronous lock based on string
In some cases, we may want to do something based on strings. For example, it is more reasonable to use lock strings fo…… -
Java uses recursive algorithm to delete folders
Premise: Integrated development environment (IDE): Eclipse JDK version: 8.0 Several methods of file class: 1）isFile()……