[Java] basic knowledge for a java programmer

Article catalog Java Basics data type Basic types Packing type Cache pool String (string) overview Immutability of String: String, StringBuffer and StringBuilder String Pool operation Parameter passing keyword final static Methods in Object overview equals() hashCode() toString() clone() Thr ...

Posted on Fri, 26 Jun 2020 01:10:57 -0400 by steveonly20

Integrating SSM's Demo

Article catalog 1. Version selection 2. Using maven to create a project (project structure) image-20200626115714873 3.pom.xml 4. Configuration file (under resources) Configuration files for spring( applicationContext.xml) springmvc-config.xml mybatis-config.xml jdbc.properties log4j.properties mappe ...

Posted on Fri, 26 Jun 2020 01:06:14 -0400 by Pintonite

How does Java implement the Future pattern? Detailed explanation of ten thousand words!

JDK1.8 source code analysis project (Chinese note) Github address: https://github.com/yuanmabiji/jdk1.8-sourcecode-blogs 1 what is future? For example, when we buy things online, an order number will be generated after placing an order, and then the merchant will deliver goods according to the order number, and then there will be a delivery ord ...

Posted on Fri, 26 Jun 2020 00:53:48 -0400 by virtual_odin

Deep understanding of mybatis L2 cache

Deep understanding of mybatis L2 cache In our daily projects, we often don't choose to use MyBatis's second level cache, because when you are not familiar with the second level cache. Because improper use can easily cause dirty reads, let's take a look at the slot points and highlights of L2 cache. F ...

Posted on Fri, 26 Jun 2020 00:49:48 -0400 by ryanbutler

Android build process - Part 2

Android build process - Part 2 Pre operation task list How to view a task class Task1: checkDebugClasspath 1. input/output 2. How to find the task implementation class 3. Core class (AppClasspathCheckTask) Task2: preDebugBuild 1. input/ouput 2. Core class (AppPreBuildTask) Task3: compileDebugAidl ...

Posted on Thu, 25 Jun 2020 22:42:13 -0400 by jason102178

Notes on Java learning

Notes on Java introduction 2 - Hao bin abstract class Abstract method abstract class Final keyword Final decorates the entire class Some properties in the Final modifier class interface (interface) Definition of interface Format of interface Syntax knowledge of interface Function of interface Th ...

Posted on Thu, 25 Jun 2020 22:40:21 -0400 by justdiy

Infix expression to suffix expression (Java)

Infix expression to suffix expression (Java) Blog description The information involved in this article comes from Internet collation and personal summary, which means personal learning and experience summary. If there is any infringement, please contact me to delete, thank you! step Two stacks are initialized: operator stack s1 and stack s2 ...

Posted on Thu, 25 Jun 2020 05:14:41 -0400 by jayjay960

ActiveMQ learning note 1 - getting started

1 Introduction to ActiveMQ 1.1 support multi language and protocol convenient client. Languages: java, python, C, C + +, php, etc Application protocols: OpenWrite, Stomp REST, XMPP, AMQP, etc 1.2 support for spring; 1.3 it supports high-speed message persistence through JDBC and journal, which can b ...

Posted on Thu, 25 Jun 2020 03:32:39 -0400 by droomagon

java network programming foundation

Network programming 1. Purpose of network programming Share resources Realize data transmission and download 1.1 software architecture Network communication is based on software structure: C/S structure and B/S structure The full name of C/S architecture is Client /Server architecture, that is ...

Posted on Thu, 25 Jun 2020 02:49:03 -0400 by RussW

Using MVC framework to develop a small project for users to log in, register and log out

introduction This year, due to the epidemic, the school didn't start. All the final exams were online exams, and the students were also happy to open their flowers. With the conclusion of Java Web, the teacher also arranged a big assignment to develop a project with MVC architecture. Dragon Boat Festi ...

Posted on Thu, 25 Jun 2020 01:36:36 -0400 by Threepwood