Java
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JSTL_ XML tag library
JSTL_ XML 1： Explain 2： XML tag library The main function of XML tag library is to provide convenient support for op…… -
java_ Custom tag, my first custom tag!
Custom tag, my first custom tag! There are two steps altogether I case Output client IP ViewIP. jsp -
Java_ IO stream_ abstract class
< p align = "left" > I concept III Character stream and byte stream and file 1. Byte stream Input stream Out…… -
struts2_ Project operation report 404
1. Missing jar package, commons-lang3-3.2 jar Reference website: https://blog.csdn.net/u013457382/article/details/5097…… -
struts2_ HelloWorld
First struts 2 program - Hello 1. Create web project struts2-01-hello 2. Import the jar package into the bin d…… -
java_ generic paradigm
I Use of generic classes 1. Use generics when defining classes 2. be careful: 3. Code example -
Java_ Bubble sorting_ Principle and optimization
Bubble sorting and its optimization I Principle and optimization principle 1. Principle explanation Bubble sorting…… -
struts2_ Is struts 2 thread safe?
Thread safety: multiple threads execute concurrently in a process. During thread execution, the variable values are th…… -
JSTL_ Core tag library
I explain 2： Core tag library The core tag library provides the general functions required for JSP page programming. …… -
struts2_ Struts 2 basic configuration
Basic configuration 1. Create a new web project 2. Import the jar package. Download the jar package required by stru…… -
Java_ Properties
Java_ Properties class Differences between hashtable and HashMap HashMap thread is unsafe, asynchronous and efficient …… -
Solve org hibernate. HibernateException: identifier of an instance of com. ahd. entity. Order was altered from2 to 0
error message Causes: 1. eg. The type of ID in the mapping file is integer, that is, int, while the type o…… -
Basic use of Java enumeration classes
Enum type is a new feature in Java 5. It is a new type that allows constants to represent specific data fragments, and…… -
Java Web Series: JDBC Foundation
ADO. Net in Java is the enterprise library dataaccessapplicationblock module, the module in Java, and the orm of entit…… -
Java Web Series: JAAS authentication and authorization Foundation
1. Overview of certification and authorization (1) Authentication: authenticates the user's identity. . Net based RBS …… -
Java Web Series: Fundamentals of Java Web projects
1. Java web module structure JSP files are similar to axpx files. Paths and URLs correspond to each other one by one a…… -
Detailed summary of transaction in Java
< H4 id = "1 what is a Java transaction" > < span style = "color: #3366ff;" > 1. What is a Java transactio…… -
JAVA Chinese garbled code
1. In MyEclipse, you can set the file encoding format, but when we use scanner to type, because Windows uses GBK encod…… -
Generating XML files using java
《 XML in the eyes of Java -- File Writing There are four ways to generate an XML file in Java. 1. Generate XML docum…… -
Java access control
Java provides four access rights: Public > protected > package access rights (no keywords) > private Packages…… -
You can also use Java swing to make such a dazzling MP3 player_ Source download
I had published the blog ： and to display some screenshots about this MP3 Player. The target for this blog is that to…… -
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The Skins of the Substance
This blog is about a java jar file : Substance. jar well,you can get it from links as below: The skins of the substanc…… -
Java inner class_ Let you see_ Don’t be confused anymore
In a blog: "you can learn something about Java inner classes, but there are still some places in the inner classes tha…… -
Color image converted to black and white picture
This blog will be talking about the color image converted to black and white picture. The project structure as follow:…… -
Tobinarystring() method of integer in Java
During an interview, I encountered such a question. The general meaning of the question is: let me write out the tobin…… -
The applications we developed in those years
The applications to be discussed here are mainly developed and implemented by Java, Python and other languages in Wind…… -
Hibernate learning notes
< p class = "L" > transferred from < a style = "font size: 14px;" href="%20http://blog.csdn.net/jiuqiyuliang/…… -
“Goto” — label in Java
There is no goto in Java, but goto is a reserved word. For example, int goto; It's illegal. However, there are tags in…… -
Complete expression of interface in Java
When I use a tool: Java decompiler decompiler to view the jar package source code, the following code appears: I searc……