Java
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Example analysis of HashSet’s principle of removing duplicate values
The set in Java is a set that does not contain duplicate elements, specifically, E1 Element pair of equals (E2). Null …… -
On the injection mode of spring IOC and different data types
For a simple reference to spring IOC: Simple instance of spring IOC and scope attribute resolution of bean -
Properties configuration in mybatis (recommended)
These properties are externally configurable and dynamically replaceable. They can be configured in a typical Java pro…… -
On the way of Java calling restful API interface
Absrtact: Recently, there is a demand to provide customers with some restful API interfaces. QA uses postman for testi…… -
Java Sudoku game full version sharing
This example shares the specific code of Java Sudoku game for your reference. The specific contents are as follows The…… -
Simple implementation of merge sorting of Java sorting algorithm
Algorithm description: for a given set of records, first merge every two adjacent subsequences with length of 1 to obt…… -
On the technical basis of servlet development
1、 Servlet overview 1. Dynamic web resource development technology provided by Sun company. It is essentially a java …… -
Summarize interrupt in Java based on jdk8
1. Interrupt knowledge points The following summary is based on jdk8 This article will not fully explain interrupt, bu…… -
Take bank withdrawal as an example to simulate the complete code of Java Multithread synchronization
Briefly understand the differences between processes and threads in the operating system: Process: each process has an…… -
Detailed discussion on misunderstanding and experience summary of Java exception handling (sharing)
This paper focuses on some misunderstandings in the selection and use of Java exceptions. I hope readers can skillfull…… -
Import Maven web project in eclipse and configure it to run in Tomcat
Today, due to the internship, we need to import the company's developed projects into eclipse, and the company's proje…… -
Building applications using gradle in the eclipse IDE (Graphic)
Ant, Maven and other tools are often used to build the system. For beginners, they are still too complex and take time…… -
Java method of judging user login using cookie
This example shares the method of using cookies to judge user login in Java for your reference. The specific contents …… -
Example of quick sorting algorithm based on divide and conquer in Java
This paper gives an example of a fast sorting algorithm based on divide and conquer in Java. Share with you for your r…… -
Basic analysis of servlet session Technology
1、 Cookies 1. Set the cookie with the content of time 2. Get cookie information 2、 Session (getsession() --- > se…… -
Core algorithm of Sudoku game in Java version (I)
I used JavaScript to write a Sudoku game when learning JavaScript. Recently, I saw some Java content, so I wanted to m…… -
Explain the online and offline email notification of spring boot admin monitoring service
This article introduces the online and offline email notification of spring boot admin monitoring service and shares i…… -
Java write string to text file code example
1、 Filewriter and file -- write string to text file 2、 InputStream and OutputStream input and output streams 3、 Obj…… -
Summary of two methods to realize circular queue based on Java array
The method of implementing circular queue in Java: 1. Add an attribute size to record the current number of elements. …… -
Java string source code and comprehensive analysis of string constant pool
1. Introduction to string, common methods and source code analysis 2. String constant pool analysis common method equa…… -
Simple code example for Java implementation to judge browser version and type
The simple Java method to obtain the browser version and type is not perfect, but it can be used; I hope you can impro…… -
Simple implementation of Java bubble sorting
Algorithm description: for a given n records, compare two adjacent records successively from the first record. When th…… -
Realization of perceptron algorithm in Java
@H_ 403_ 1 @ brief description With the rapid development of the Internet, a (AI) B (bigdata) C (cloud) has become the…… -
How eclipse imports Maven project (beginner)
Recently, I met the spring MVC project under Maven's management. A member of the team threw the project code over and …… -
Javamailsender implements mailbox authentication
This paper starts with the problems encountered in mailbox registration verification through javamailsender, and analy…… -
On scope scope scope in spring
Today, I studied the scope of scope. The default is singleton mode, that is, scope = "Singleton". In addition, the sco…… -
Servlet realizes file download function
This example shares the specific code of servlet file download for your reference. The specific contents are as follow…… -
General permission management design in Java (recommended)
Realize user authority management in business system Permissions in the B / s system are more important than those in …… -
The spring interface supports the return of multiple formats (XML, JSON, HTML, Excel) through configuration
1. Introduction This article mainly introduces how the back-end service using spring MVC supports multiple return valu…… -
Properties configuration in mybatis (recommended)
These properties are externally configurable and dynamically replaceable. They can be configured in a typical Java pro…… -
Simple implementation of Java Sudoku game
This example shares the specific code of Java Sudoku game for your reference. The specific contents are as follows I p…… -
In depth analysis of the specific usage of Java vector and stack
We have already touched several data structures, including array, linked list, hash table and red black tree (binary q……