包含标签：Java 的文章
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Java’s POI technology to read and import Excel
< div class = "cnblogs_highlighter" > project structure: -
Query on “minimizing repeated calculation of variables in the for loop”
In the following article: Described in '': Operation effect: a. b. c. d. Summary: a lot of data has been tested, indic…… -
Java reflection – dry goods
After reading many articles on java reflection, I summarized what I saw. Help yourself and others more or less. First,…… -
Blog Garden_ Insert code (recommended)_ Button function realization_ Code highlights
Operation effect: : preparation 1. Download SyntaxHighlighter_ 1.5. 1.rar Download address: After decompression, D…… -
Urlrewriter in Java (URL rewriting)_ Source download
Recently, I used URL rewriting in a project. How to enhance the readability of the address in your website and let the…… -
Java POI technology to read Excel data to MySQL
This blog is to introduce the POI technology in Java, read Excel data, and then save it to MySQL data. You can also le…… -
java_ Free blocks (static and non static blocks)
There are two types of free blocks in Java: Static and non static blocks Static block: Non static block: Test Demo: Co…… -
Java Web – Filters
《 Application of Java Web development technology - filter < p class =" best text mb-10 "> a filter is a program…… -
A demo tells you the power of the optimization algorithm
The demo here is an accumulation algorithm, such as 1,2,3,4 n That is: sum = 1 + 2 + 3 + 4+ n; We can do this: Another…… -
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L1 cache in Hibernate
HibernateTest. java code: Operation effect: As we will see, only one select statement is used here. But we read two re…… -
Introduction to algorithm – binary search algorithm
Algorithm premise: The algorithm idea is: 1. Compare the middle value in the array with the searched value each time 2…… -
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Maven with Multi-module
Well,A project made of multi modules. For example,the hongten-security project,the structure of the hongten-security p…… -
Whether the list record in Java exactly matches the method
Today I want to talk about grouping the list and then encapsulating it with map. Maybe you still have some ambiguity a…… -
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Java uses POI to import data from database into Excel
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PBE_ Password based encryption_ You can also have
In a blog called: PBE - password based encryption is mentioned in. I also tested it. Now I'll show you the effect of m…… -
Java programming_ socket_ Socket_ Network programming
For the server, use ServerSocket to listen to the specified port. The port can be specified at will (since ports below…… -
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Shift operators in Java: <, > >, > > > summary
There are three shift operators in Java < <: shift left operator, Num < < 1, equivalent to num multiplied …… -
There are several states of Java objects in hibernate. How are they related to each other (distinction and mutual transformation)
I spent some time understanding several states of Java objects in hibernate. It's easy to understand. Here's a record …… -
Java development_ Imitate Baidu Library_ SWFTools_ Source download
I wrote an article before: Step 2 today: SWF (pdf2swf) Before doing this, we should also make some preparations: ： ja…… -
Java multithreading series_ Thread Introduction (1)
1、 Thread overview Thread is the basic execution unit of a program. When the operating system (excluding the single t…… -
Java development_ Generate / parse your own QR code QR code
When I saw a tool for generating QR code, I came up with an idea: Why not make a QR code generation and analysis tool?…… -
Common resource arrangement based on Java platform
Here is a collection of tools for building applications: Maven uses declarations to build and manage dependencies, pre…… -
Multiple cycles, methods and operations
< p align = "center" > multiple loops and methods 1、 Multiple choice questions eight String } ninety-ni…… -
Encapsulating and inheriting jobs
< p align = "center" > encapsulate and inherit jobs 1、 Multiple choice questions Change private int m to prot…… -
9. CSS attribute
Summary of CSS refinement knowledge points 1. Inline style: only works on the elements it modifies Syntax: style = "at…… -
Multithreaded job
< p align = "center" > multithreaded job 2、 Multiple choice questions 3、 Judgment question Process: the dynami……