Java
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Java calls JavaScript to implement string calculator code example
If the expression is in the form of string, we will generally encounter great problems in evaluation. There is a metho…… -
Explain the local warehouse and remote warehouse of Maven warehouse in detail
What is Maven warehouse When Maven is not used, for example, we used to build projects with ant. In the project direct…… -
Java calculation mathematical expression code explanation
Java string is converted into arithmetic expression to calculate and output the result. Through this tool, you can dir…… -
Java multithreading takes too long to process business code example
Background: an application system has been developed in the government. Its main function is to allow enterprises to f…… -
On Java operators and their priorities
Almost all operators can only operate on 'primitives'. The exceptions are' = ',' = ', and'! = ', which can operate on …… -
Java Servlet3. 0 handles problems asynchronously
Through this article, we mainly explain servlet 3.0 in java development The problems encountered in asynchronous proce…… -
Top 200 pages of Baidu Java interview questions (middle)
Baidu's first 200 pages of "Java interview questions" Multithreading Basic concepts What are the advantages of multith…… -
Spring AOP getting started demo sharing
Before reading this article, you can first refer to the article "a brief understanding of IOC and AOP of spring and co…… -
Top 200 pages of Baidu Java interview questions (Part 2)
Baidu "Java interview questions" top 200 pages selection part 2 Design pattern What are design patterns? What design p…… -
Serialize Java objects into JSON and XML formatted instances
1. Define a Java object person first: 2. Use Alibaba's fastjson-1.2 13.jar（ http://maven.outofmemory.cn/com.alibaba/f…… -
Sample code for using HTTP requests in spring boot
Because of the project requirements, the two systems need to communicate. After some research, it is decided to use HT…… -
The whole process record of mobile phone short message verification code in Web project
preface Recently, I'm working on a remote intelligent water meter management system. One function of this process is t…… -
Top 200 pages of Baidu Java interview questions (Part 1)
Baidu "Java interview questions" top 200 pages selected part I Basic concepts What is the difference between heap and …… -
Share JavaScript code examples through Java compression
Compress JavaScript code by removing empty lines and comments -
Detailed explanation of Java custom implementation chain queue
1、 Write in front The queue in the data structure should be familiar, that is, first in first out. It is named queue …… -
Summary of the method of combining two arrays into one in Java implementation
This example describes the method of combining two arrays into one in Java. Share with you for your reference, as foll…… -
Execution order judgment of static code blocks and construction methods in Java
preface Static code takes precedence over non static code because members modified by static are class members and wil…… -
Java programming two tree menu structure conversion code
First look at the code examples of two tree menu structures. SingleTreeNode： This structure is suitable for storing i…… -
On using session to prevent repeated submission of forms
To solve the problem of repeated submission of forms in projects, the following situations may occur in ordinary proje…… -
Detailed explanation of Java date processing tool class dateutils
This example shares the specific code of Java date processing tool class dateutils for your reference. The specific co…… -
Java uses spring to realize the sample code of read-write separation
In the recently launched projects, the database data is approaching saturation, the largest table data is close to 300…… -
Spring boot automatically updates static files and instances of background code
During the use of spring boot, I found that I modified the static file. After the foreground is refreshed, there is no…… -
Java language implementation maximum heap code example
Maximum heap The characteristic of the largest heap is that the parent element is larger than the child element, and i…… -
Sample code of spring AOP to implement permission verification function
There are many ways to realize the function of function permission verification. One is to use interceptors to interce…… -
Spring boot application startup and shutdown method
Spring boot, as the product of the spring framework's best practice of the concept of "convention over configuration",…… -
Subjective and objective comparative analysis of kotlin and Java
Kotlin Kotlin is a relatively new JVM language, and JetBrains has been actively developing it since 2011. Over the yea…… -
23 design patterns (13) Java observer pattern
23 design patterns Part 13: Java observer pattern Definition: defines a one to many dependency between objects, so tha…… -
Java implements heap operation methods (heap building, insertion, deletion)
As follows: The above operation methods of Java heap implementation (heap building, insertion and deletion) are all th…… -
Spring boot + thymeleaf + bootstrap to realize the background management system interface
Recently, I'm learning spring boot. Learning a framework is nothing more than using it to do what I did before. The co…… -
Spring definition and assembly bean details
Before reading this article, you can refer to the article "simple understanding of IOC and AOP of spring and code exam…… -
Java language to achieve binary heap printing code sharing
Binary heap is a special heap. Binary heap is a complete binary tree (binary tree) or an approximate complete binary t…… -
Java implements Cartesian product algorithm example of unknown dimension set based on recursion and loop
This paper illustrates how Java implements Cartesian product of unknown dimension set based on recursion and loop. Sha……