Java
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Java standard I / O stream programming record (Part 2)
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Common application scenarios of singleton mode
Singleton, also known as singleton, is the simplest of design patterns. Even some pattern masters do not call it a pa…… -
Simple use of zookeeper
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
Static and final can modify objects and their characteristics
1. Final can modify: class variable, member variable, local variable, method and class. 1.1. Variable modified by fina…… -
What variables can Java’s class constructor access
public class Main { /** 代码验证问题: 1.使用this关键字时,构造函数里面可以访问:任意位置的成员变量 2.不使用thi…… -
Xidian Tongyuan is self-learning Java. It always doesn’t know what level to learn to work, and it doesn’t have a direction?
The job is to do the project. Usually you will be responsible for a small module. So the standard of normal work shoul…… -
LinkedHashMap source code analysis – java8
Thanks to yesterday's interview with Netease, I got to know a collection again. After I came back, I quickly made an a…… -
Is the biggest advantage of Java really cross platform?
Transferred from: The following discussion is only for PC and mobile terminals. -
During the operation, the values of byte, short and char will be promoted to int
< H3 id = "1 knowledge point" > 1 Knowledge points Java expression transformation rules from low to high: public…… -
What is the level of Java proficiency?
It is never recommended to write something on your resume that you know, know, master and master. The academy has alwa…… -
The engineers in the whole stack have written in the front and back, and have been working for nearly three years. But recently, I realized that my java foundation is relatively weak, so I’d like to recommend a book to supplement the Java foundation?
Learn from Memcache, redis, elasticsearch, mongodb, Cassandra, ActiveMQ, Tuscany and their internal implementations. L…… -
Salt password hash: how to use it correctly
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Treemap source code analysis – java8
< H4 id = "1" feature analysis "> 1 feature analysis Briefly introduce package sourcecode analysis; -
Listiterator interface source code analysis – java8
1. ListIterator VS Iterator： package sourcecode. analysis; -
Effective Java reading notes
< H3 id = "1 static factory method" > 1 Static factory method There are three ways: set the constructor method t…… -
What is the anemia model and what is the congestion model? Why do we force the use of anemia models?
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
Int, long, float, double range (Java)
Sy<a href="https://www.jb51.cc/tag/stem/" target="_blank" class="keywords">stem</a>.out.println("-----…… -
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JDBC connection pool analysis
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
Java declares the calling order of static statement block, instance code block and constructor method when subclassing
I wrote a before, but only for a class. When two classes are encountered, of course, there is an inheritance relations…… -
What is nginx?
This is the back-end small class of the Xiuzhen Academy. Each shared article is from [background introduction] [knowle…… -
Exception: the server time zone value ‘Ö Ð¹ ú±ê ×¼ ʱ ¼ ä’ is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configurat
Exception: The server time zone value 'Ö Ð¹ ú±ê ×¼ ʱ ¼ ä' is unrecognized or represents more than one time zone. You …… -
Preliminary study on AOP
Hello, I'm a java student of Shenzhen Branch of it Academy. I'm an honest, pure and kind java programmer. Today, I'd l…… -
How to call a third-party API to upload pictures?
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
What is dirty data? Is it possible to generate dirty data in the cache? What should I do if dirty data occurs?
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
Interface and entity class
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
Mybatis common tags and dynamic queries
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
What is SOA? What is SCA? What is micro service?
This is the front-end small class of the Xiuzhen Academy. Each shared article is from [background introduction] [knowl…… -
Java universal
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