Java
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Java improve the seventh class loader analysis
Today, we will learn about class loaders. Class loaders actually have a lot to do with the JVM. This article only brie…… -
Java super simple crawler example explanation
Crawl the data of the whole page and effectively extract information. If there are comments, there will be no nonsense…… -
Spring boot packaging war jar deployment Tomcat
summary 1. Spring boot aggregation project packaging War deployment Tomcat 2. Spring boot packages jar and runs it dir…… -
Code sharing of several loop examples in Java programming
About the content of Java loop, it is still commonly used in programming. Let's share some sample code of loop for pra…… -
Java uses the RandomAccessFile class to read and write file instance code based on pointers
The Java API provides a class that implements random access to files based on pointer operation. This class is the Ran…… -
Export the jar package that Maven project depends on (Graphic tutorial)
Note that the MVN command is an environment variable that needs to be configured for Maven 1、 Export to custom direct…… -
Open environment for Alipay under spring boot
sdk-alipay Open environment for Alipay under spring boot Usage scenario Spring boot application needs access to Alipay…… -
Brief introduction to eclipse code formatting settings
Unified eclipse formatting Java, JavaScript, JSP and HTML code settings in self use projects Before formatting: After …… -
Java object oriented programming (encapsulation / Inheritance / polymorphism) instance parsing
This paper mainly introduces the analysis of three object-oriented feature examples. Let's see the specific content. e…… -
Analysis of future in Java and Scala
With the increase of CPU cores, asynchronous programming model has been more and more applied in the field of concurre…… -
Java implements the merging and output of multiple documents to one document
This example shares the specific code of Java to merge and output multiple documents to one document for your referenc…… -
Java 8 uses lambda to implement Java tail recursion
preface What this article introduces is not new knowledge, but the comprehensive application of some knowledge explain…… -
Explicit locking mechanism of Java Concurrent Programming
We have previously introduced the synchronized keyword to realize the atomic operation of the program. Its internal is…… -
Spring connection database and JDBC template (example explanation)
preface Today's introduction is about the database connection of spring and the API methods related to the JDBC templa…… -
An instance of reading peroperties file based on JavaBean editor
introduction Recently, I reread the book "proficient in Spring + 4. X + + enterprise application development practice"…… -
Java programming to achieve a simple collision detection function example in the game
This article describes the simple collision detection function in Java programming. Share with you for your reference,…… -
Servlet filter and listener based on Java (detailed explanation)
1 filter 1. What is the filter? A special component defined in the servlet specification for intercepting container ca…… -
On spring bean life cycle verification
1、 Looking at bean life cycle from source code comments From the JDK source code, the beanfactory implementation clas…… -
Detailed explanation of semaphore counting semaphore in Java Concurrent Programming
Semaphore is a counting semaphore, and its essence is a shared lock. Semaphores maintain a semaphore permission set. T…… -
Detailed explanation of data locality on Hadoop
Detailed explanation of data locality on Hadoop Data locality in Hadoop refers to the "proximity" of the data with res…… -
Method for obtaining file list and sub file directory by Java programming (non recursive)
If you don't talk nonsense, go straight to the subject. See the code Notes for understanding. The above is how to get …… -
Detailed explanation of stream flow examples of new features in Java 8
What is a stream? A stream stream is a data channel used to manipulate a sequence of elements generated by a data sour…… -
Complete example of image upload tool class implemented in Java
This article describes the image upload tool class implemented in Java. Share with you for your reference, as follows:…… -
Instance of text string operation tool class implemented in Java [data replacement, encryption and decryption]
This article describes the text string operation tool class implemented in Java. Share with you for your reference, as…… -
How to find Java installed by yum_ Detailed explanation of home environment variables
preface Many programs that need javac in development depend on Java_ Home environment variable If you manually downloa…… -
Java create and end thread code example
This article describes the most basic method of how to create and end threads in Java, only for java beginners. Some a…… -
Java multithreading thread communication producer consumer mode and waiting wake-up mechanism code explanation
preface In the previous examples, multiple threads are doing the same operation. For example, four threads are doing t…… -
Java date related class examples
1、 Date class Class date represents a specific moment, accurate to milliseconds. The number of milliseconds (long) fr…… -
Detailed explanation of bean life cycle used by spring configuration
Basic concepts The life cycle of a bean in spring refers to the process from creation to destruction of a bean. Let's …… -
Valid queue definition and usage example of Java data structure
This paper describes the definition and usage of effective queue of Java data structure. Share with you for your refer…… -
How to obtain the province and city corresponding to the IP address by Java request
preface In a recent project, users in different provinces need to display different contents, so you need to obtain th…… -
In depth analysis of the differences and uses between mybatis and Hibernate
For a long time, I was unfamiliar with mybatis. I only knew that it was an ORM database framework like hibernate. With……