Java
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Example analysis of Jfilechooser usage of Java swing component
This article describes the usage of Jfilechooser, a java swing component. Share with you for your reference, as follow…… -
Java escape analysis and code examples
Concept introduction We all know that objects created in Java are allocated to heap memory, but the fact is not so abs…… -
Detailed explanation of the method of implementing custom cascading in spring data mongodb
preface The spring data mongodb project provides integration with mongodb document database. When spring integrates wi…… -
Usage code example of list in Java collection
The list interface is a sub interface of the collection interface. List has an important implementation class - ArrayL…… -
Concurrent container based on copyonwritearraylist (example explanation)
Copyonwritearraylist concurrency container Copy on write, referred to as cow, is an optimization strategy used in prog…… -
Java Web applications use stream limiting to handle a large number of concurrent requests
In web applications, a large number of client requests are sent to the server at the same time, such as rush purchase,…… -
Detailed explanation and implementation of current limiting in high concurrency system
When developing high concurrency systems, there are three sharp tools to protect the system: caching, degradation and …… -
A note on the use of stream in Java 8
Introduction to stream Let's take a look at how stream is defined in Java: A sequence of elements supporting sequentia…… -
Javamybatis mapping attribute, detailed explanation of advanced mapping
SQL attribute of mapping file: ID: identifier (usually Dao layer method name) Resulttype: SQL return type Resultmap: m…… -
Introduction to MyEclipse export runnable jar package
This method can simply import third-party jar packages 1. Right click the project, click export = "Java =" and select …… -
Java Swing implements a method example to center the form
This example describes the method of Java swing to center the form. Share with you for your reference, as follows: Swi…… -
Java NiO instance UDP sending and receiving data code sharing
In the NiO package of Java, there is a class dedicated to sending UDP packets: datagramchannel. UDP is a connectionles…… -
Operation skills of java thread start method callback run method
During the interview, you may be asked why we execute the run () method when we call the start () method, and why we c…… -
Explain in detail how to deploy spring boot project with Jenkins
Jenkins is a Devops artifact. This article describes how to install and use Jenkins to deploy the spring boot project …… -
Java spring development environment construction and simple introductory example tutorial
This article describes the construction of Java spring development environment and a simple entry example. Share with …… -
Introduction to avoiding hidden traps of equals method in Java programming
abstract This paper describes the technology of overloading equals method, which can ensure the correctness of equals …… -
Three methods of obtaining keyboard input values in Java
In the process of program development, it is common to obtain input values from the keyboard, but Java has no ready-ma…… -
Detailed introduction to synchronization and asynchrony in Java
Process synchronization is used to achieve the reproducibility of program concurrent execution. 1、 Concepts of proces…… -
The application scope implements user login to squeeze out the previously logged in user code
1、 Realization thought 1. Application (ServletContext) is a scope saved on the server side. We save two forms of key …… -
Detailed explanation of thread synchronization synchronized and volatile of Java threads
In the previous part, a simple example was given to illustrate thread safety and insecurity. In the case of insecurity…… -
How to use Java API
What is a Java class library When writing programs, there are usually many functions that are general or very basic. T…… -
Spring MVC formats data by adding custom annotations
Spring MVC custom annotations and parsing of custom annotations 1、 Custom annotation name 2、 Test class 3、 Parse th…… -
Based on the functions and dependencies of various jar packages in spring (detailed explanation)
The download link of jar package of each version of spring is attached first http://repo.spring.io/release/org/springf…… -
Java reflection easy tutorial
About java reflection, we need to understand the following questions: What is reflection? What's the use of reflection…… -
Parameter meaning and usage example of setdefaultcloseoperation in Java swing JFrame framework class
This article describes the meaning and usage of the setdefaultcloseoperation parameter in the Java swing JFrame framew…… -
How to use rxjava function operators
Rxjava function is very easy to use. Some operators inside are very convenient. Rxjava includes: observed, observer, s…… -
Usage example of JTable renderer and editor in Java Swing
This article describes the usage of JTable renderer and editor in Java swing. Share with you for your reference, as fo…… -
Java implementation of double linked list to exchange any two nodes with each other
This paper describes the method of exchanging any two nodes in a double linked list in Java. Share with you for your r…… -
What kind of Java exceptions inherit, and the difference between runtime exceptions and general exceptions (detailed explanation)
1、 Basic concepts Throwable is the root of all exceptions, Java lang.Throwable Error is an error, Java lang.Error Exc…… -
An example of integrating hibernate on the basis of existing spring
1. Import hibernate package and spring package Hibernate 3, hibernate-jpa-2.0-api -, required packages, log4j, log4j c…… -
Code example of inheritance problem in Java programming
Classroom exercises: C in package bzu Aadefine a vehicle class in: 1. Attribute - capacity 2. Method (1) Parameterless…… -
Principle and implementation of Java Multithread timer
preface The timing / scheduling function is widely used in various fields of Java applications. For example, at the we……