Java
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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…… -
Maven’s method of packaging web projects into war and jar files at the same time
This paper introduces how Maven packages web projects into war and jar files at the same time, and shares it with you.…… -
Dijkstra algorithm for realizing the shortest path algorithm in Java
preface Dijkstra algorithm is a well-known shortest path algorithm. It is a single starting point full path algorithm.…… -
On @ profile of spring annotation
The @ profile in spring is very similar to the profile in Maven. The parameters are changed through configuration. For…… -
Easy to use ssh-struts2 01 environment for beginners (Graphic tutorial)
Firstly, SSH is not a framework, but the integration of multiple frameworks (struts + Spring + Hibernate). It is a pop…… -
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…… -
Java to find the large number of two numbers (example explanation)
Max function in Java in math The application is as follows: int a=34； int b=45； int ans=Math. max(34,45); Then the v…… -
Java toString method rewrite code example
When you need to output an object to the display, you usually call his toString () method to convert the content of th…… -
On the process of Java recycling object tags and object secondary Tags
1、 Tags for objects 1. What is a tag? How? The first problem, as we all know, is to mark some dead objects to facilit…… -
java. Comparison between lang. void and void and introduction to their usage
Void is not a function, but a modifier of a method. Void means that the method does not return a value, which means th…… -
Detailed interpretation of Hibernate cache mechanism
1、 Why (why use hibernate cache?) Hibernate is a persistence layer framework that often accesses physical databases. …… -
Simple understanding of common tool classes in spring
File resource operation Spring defines an org springframework. core. io. Resource interface. Resource interface is def……