Java
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Java implementation of string to string array method example
This example describes the method of converting string to string array in Java. Share with you for your reference, as …… -
How to use the Java this keyword
How to use the Java this keyword This keyword in constructor Construction methods are automatically called when a clas…… -
Kotlin basic type auto packing problem solution
Kotlin basic type auto packing problem solution problem When the official kotlin document introduces basic types, it e…… -
Three ways to run Java main using maven
Maven uses the exec plug-in to run the Java main method. Here are three different operation modes. 1、 Run from the co…… -
Summary of MD5 encryption using java
This article describes the method of implementing MD5 encryption with Java. Share with you for your reference, as foll…… -
Java implementation of installable exe program examples
Java implementation of installable exe program examples The general idea of realizing installable exe files by writing…… -
Agent model for Java design pattern learning
Proxy mode: provides a proxy for other objects to control access to this object. Agent mode structure diagram Simulati…… -
On the wonderful use of future in Java multithreading (with source code)
In Java, future is a future object, which stores the processing results of this thread. It is like a delivery voucher.…… -
Decoration pattern of Java design pattern learning
Decoration mode: dynamically add some additional responsibilities to an object. In terms of adding functions, decorati…… -
Strategy model of Java design pattern learning
Policy mode: policy mode is a method to define a series of algorithms. The work completed by the algorithms is the sam…… -
Read the configuration parameter instance in the XML file
paras. XML file SysParam.@ R_ 502_ 1713 @ file use Reference package required The above example of reading configurati…… -
Code example of Java crawling mailbox from the Internet
Web crawler: in fact, it is a program used to obtain data conforming to specified rules on the Internet. summary Jsup …… -
Several ways to implement action in struts 2
Action is used to process user requests, so it is also called business controller. Each action class is a work unit. T…… -
Quickly understand hibernate configuration files and mapping files
Hibernate is a thorough ORM (object relational mapping) open source framework. Let's take a look at the high-level vie…… -
Preventing unlisted users from operating — a simple implementation based on struts 2 interceptor
Generally, our web applications are allowed to operate only after the user logs in, that is, we do not allow non login…… -
Factory method pattern for Java design pattern learning
Factory method: define an interface for creating objects, and let subclasses decide which class to instantiate. Factor…… -
The Jackson entity turns JSON to null or empty and does not participate in serialization (example explanation)
When using Jackson for serialization, we often encounter that the attribute of an entity object in the background is n…… -
Explain in detail how JSTL in Java Web circulates map data in list
Explain in detail how JSTL in Java Web circulates map data in list The first way: 1: Background code (test) 2: Front p…… -
Java implementation of two-dimensional array to JSON method example
This paper describes the method of converting two-dimensional array to JSON in Java. Share with you for your reference…… -
Java implementation of web page verification code function
This example shares the implementation code of Java Web page verification code for your reference. The specific conten…… -
Futuretask source code analysis (recommended)
Futuretask only implements the runnablefuture interface: @ h_ 404_ 1@ This interface inherits Java Lang. runnable and …… -
Java thread safe counter simple implementation code example
In the past few days, a business code needs a variable to increase from 1 every day. To this end, I simply encapsulate…… -
Influence of synchronized method on non synchronized method
StringBuilder is a thread unsafe class. StringBuffer is thread safe because its methods are synchronized. Today, I wro…… -
Simple definition and usage example of Java two-dimensional array
This article describes the simple definition and use of Java two-dimensional array. Share with you for your reference,…… -
Loading order and execution results of classes in Java
The specific code is as follows: Execution results: Static method of parent class 2 static initialization block subcla…… -
Struts 2 interceptor about solving login problems
The working principle of the interceptor is shown in the figure. Each action request is wrapped in a series of interce…… -
Java programming uses stack to solve the code example of Hanoi Tower problem (non recursive)
[title] The tower of Hanoi is a classic problem. Here is a modification of the rules of the game: now the restrictions…… -
Example of Java output printing tool class encapsulation
When you print out Java and view the field value, you feel that you have written system. Net every time out. After pri…… -
Struts 2 configuration XML action details
When learning struts, we must master the working principle of struts 2. Only when we specify the implementation proces…… -
Detailed explanation of calendar class usage examples in Java
This article describes the usage of calendar class in Java. Share with you for your reference, as follows: Calendar in…… -
Explain the reflection mechanism in Java (including array parameters)
Explain the reflection mechanism in Java (including array parameters) Java reflection is what I always like very much,…… -
Java date time and date conversion
Java date, time, and mutual conversion for your reference. The specific contents are as follows The above is the whole……