Java
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Simple verification code generation java version
We all know the verification code. I don't need to say more about its role. If it is not clear, please refer to the ex…… -
In depth understanding of Java built-in locks (synchronized) and explicit locks (reentrant lock)
Synchronized and reentrantlock In multithreaded programming, we use locks when the code needs to be synchronized. Java…… -
Servlet gets the method that the parameters in the Ajax post request are transmitted in the form of form data and request payload
This paper describes the method of servlet obtaining the parameters in Ajax post request and transmitting them in the …… -
Java Memory Model JMM detailed explanation
JAVA memory model, abbreviated as JMM, is a unified guarantee of a series of Java virtual machine platforms to the mem…… -
Example of linear time selection operation based on divide and conquer algorithm in Java
This paper describes the linear time selection operation implemented by Java based on divide and conquer algorithm. Sh…… -
Very easy to understand java application performance tuning skills sharing
Most developers take it for granted that performance optimization is complex and requires a lot of experience and know…… -
Maven introduces the local jar package and packs it into the war package
1. General In normal development, some jar packages are not included in Maven's central warehouse for various reasons,…… -
An instance of a Java parent thread (or main thread) waiting for all child threads to exit
Examples are as follows: The first is the implementation I wrote casually, which is a little rough. The second is a cl…… -
Example analysis of Java matrix multiplication problem (dynamic programming) algorithm
This paper describes the Java matrix multiplication problem (dynamic programming) algorithm. Share with you for your r…… -
Java / Web calling Hadoop for MapReduce example code
See this article for details of Hadoop environment construction https://www.oudahe.com/p/42834/ 。 Source code: https:…… -
Example of filtering sensitive words and advertising words by DFA algorithm in Java
1、 Foreword The development often needs to deal with the submission of some words from users, so it involves the func…… -
Understand session in Java
Let's take a look at a better description of session: A session is a session that can save user information without cl…… -
Hibernate environment construction and demo sharing
ORM concept ORM is object / relationship mapping. ORM is a specification that completes the mapping between object-ori…… -
SSM framework automatically generates code through mybatis generator (recommended)
1、 First, eclipse configures the Maven environment and creates an SSM framework project 2、 In POM Add plugin to XML …… -
Example of chessboard coverage problem based on Java divide and conquer algorithm
This paper describes the chessboard coverage problem implemented by Java based on divide and conquer algorithm. Share …… -
Romance for programmers – Java output dynamic flash iloveyou
The code test is available, and the running results are very hot. There is a sense of loss and non mainstream popular …… -
Two ways to download files in Java
This example shares the specific code for downloading Java implementation files for your reference. The specific conte…… -
Java randomly generated name, mobile phone number, address code example
This article is mainly about Java randomly generating name, mobile phone number and address code. If you ask me what's…… -
Implementation of java web login verification code
This example shares the specific code of java web login verification code for your reference. The specific contents ar…… -
Introduction to Maven’s life cycle and common commands
Introduction and advantages of maven Maven is a tool for project construction and management. It provides methods to h…… -
Implementation method of Java verification code function
1、 Foreword It can be said that the verification code has been very common in our life. Any website and any app will …… -
Quickly understand the ThreadLocal class in Java
Recently, I looked at the code of Android framework layer and saw the ThreadLocal class. It's a little strange. I turn…… -
Complete example of decision tree algorithm implemented in Java
This paper describes the decision tree algorithm implemented in Java. Share with you for your reference, as follows: D…… -
On the difference between Maven’s jar package and war package and the packaging method
Jar files include Java ordinary classes, resource files and ordinary files. In maven, you can package all files under …… -
Two code examples for Java to obtain disk space
This article shares two pieces of code to obtain disk space, for reference. Code 1: Operation results Code 2: result: …… -
Implementation and application of Java checkbox tree
When using java swing to develop UI programs, you may encounter the need to use the tree with check box, but Java Swin…… -
Mybatis gets the self growing field value (ID) of the inserted record
Step 1: Add the properties "usegeneratedkeys" and "keyproperty" in the mybatis mapper file, where keyproperty is the p…… -
Java programming to print shopping receipt implementation code
Briefly introduce the operating environment: Language: Java Tool: Eclipse System: windows7 (there is no printing devic…… -
Analysis of zookeeper Java API programming example
In this example, we use Java 3 Version 4.6, examples are convenient for everyone. If you don't understand after learni…… -
On the difference between Maven’s jar package and war package and the packaging method
Jar files include Java ordinary classes, resource files and ordinary files. In maven, you can package all files under …… -
Java redis operation details
1. Introduction Redis is an open source (BSD licensed) in memory key value storage system, which can be used as databa…… -
Java comes with an encryption class messagedigest class code example
Messagedigest class Messagedigest class provides the application with the function of information summarization algori……