Java
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Based on Android high imitation how old Net to realize face recognition and estimate age and gender. Gson’s brief notes
A few days ago, Microsoft launched the big data face recognition age application how old Net, it can quickly obtain th…… -
Gson brief notes
Introduction to gson: Gson is a Java class library provided by Google to map between Java objects and JSON data. You c…… -
Understand the principles of restful
How to explain to your wife what is restful My wife often likes to read the technical magazines I subscribe to. She ca…… -
Android Development Notes – personalized textview (Sina Weibo)
In the past few days, I have been imitating Sina Weibo client. When processing Weibo information, I need to deal with …… -
Data acquisition based on Java (I)
Previously, I wrote 2 articles on PHP data collection and warehousing: Data collection and warehousing based on PHP (I…… -
Agent model of software design pattern (Java)
It seems that I've stopped writing for nearly half a month. I really shouldn't. in the new year, I always return to ze…… -
The difference between string, StringBuilder and StringBuffer
StringBuffer, StringBuilder and string can all be used to represent strings. String class is immutable. Any change to …… -
Introduction to Shiro and construction of spring MVC + Shiro
1、 Introduction to Shiro Apache Shiro is a security framework of Java. It is a powerful and easily integrated open so…… -
Java multithreading JUC
1. Volatile keyword During multi-threaded access, a serious problem is that the memory is invisible. In fact, during m…… -
TCP details
1. Introduction we all know that TCP is a protocol located in the transport layer. He also has a brother, UDP, which…… -
HashMap source code analysis
HashMap source code analysis 1. Structure 1. Succession this class inherits from abstractmap, which is similar to Ar…… -
JavaIO
1. Byte stream and character stream There are two data transmission formats in io, one is character stream and the oth…… -
LinkedList source code analysis
LinkedList source code analysis 1. Structure 1. Succession this class inherits from abstractsequentiallist because i…… -
Java object oriented Foundation
Object oriented has always been a very popular idea. Its essence lies in its three characteristics: encapsulation, inh…… -
Analysis of synchronized principle
Analysis of synchronized principle 1. Introduction to synchronized in concurrent programs, this keyword may be the m…… -
Java collection framework map
Title: Java collection framework map date: 2017-08-09 14:38:12 Tags: Collection framework categories: - Java public cl…… -
Java collection framework [list / set]
1. Basic introduction: 7. Use LinkedList to realize the stack and queue structure, that is, the use of its unique addf…… -
Semaphore source code analysis
Semaphore source code analysis 1. Brief introduction to semephore generally speaking, the commonly used synchronizat…… -
LinkedHashMap source code analysis
LinkedHashMap source code analysis 1. Basic structure 1. Realization The implemented interface is map 2. Succession …… -
Spring cloud: Basics
Spring cloud: Basics Springcloud is an implementation framework of microservice architecture. It is not only a framewo…… -
Source code analysis of concurrenthashmap
Source code analysis of concurrenthashmap 1. Preface I finally got to this class. In fact, I have used this class m…… -
Java Web (VII) JSTL tag library
Previously, we learned that in order not to use scripts on JSP pages, we have built-in behaviors and behaviors in JSP,…… -
Java container
The container collection interface defines methods to access a set of objects, Its sub interfaces set and list respect…… -
The insert method of mybatis plus has the problem of – ID ‘doesn’t have a default value
If this problem occurs, just set the corresponding field annotation to, for example: This error can be solved. -
Java Web (XII) Commons fileUpload upload and download
I have a normal mind today... keep trying.. --WZY 1、 Upload principle and…… -
Detailed explanation of Java Web (V) JSP (four scopes, nine built-in objects, etc.)
We explained the servlet earlier, learned about the inheritance structure and life cycle of the servlet, and learned m…… -
Java Web (XIV) write a summary of mybookstore project
The reason why I haven't posted a blog these days is that I'm writing a small project of the book city as the final pr…… -
Java Web (VI) el expression
This is also the knowledge within the scope of JSP. Using El expressions can make better use of various built-in objec…… -
LinkedHashMap source code details
Preface I didn't intend to talk about map first, but with the understanding of set set, I found that if I don't unders…… -
Java Web (IX) user management system
I learned a lot about JSPS, servlets, JSTL, El, etc. most of them are dead things. As long as I can understand its syn…… -
Hashcode details
Preface I wrote this article because I encountered some hashcode values when reading the HashMap source code, and then…… -
Detailed explanation of reflection mechanism in Java
Preface When learning the basics of Java, I didn't think it was useful because I didn't learn well and didn't speak pr……