Java
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Analysis of hashtable source code of Java collection
summary Hashtable is also implemented based on hash table, which is similar to map, but hashtable is thread safe, and …… -
How to write false data?
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
HashMap analysis.
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
Java bytecode verification
< span style="font-weight:normal;">< span style="font-size:14px;"> When the class loader passes the byteco…… -
Mybatis multi table associated query
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
Cyclicbarrier source code analysis – java8
1. Characteristic analysis Private static class generation class has only one domain, Boolean broken = false; Used to …… -
Concurrent HashMap source code analysis – java8
< H4 id = "1currenthashmap feature" > 1 Concurrenthashmap property Note: because the word of concurrenthashmap i…… -
Java 8 method reference
summary A method reference is a method or constructor used to directly access the existence of a class or instance It …… -
Countdownlatch source code analysis
< H3 id = "1javautilconcurrent middle and advanced tools are divided into three categories" > 1 java. util. The …… -
To what extent do developers need to master the database? For example, do java developers master MySQL?
The more developers master dB, the more things you can do. Complete business functions and understand basic SQL statem…… -
HashMap
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
MySQL multi table query
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
Variables that final can modify in Java
Here we only discuss the variables that final can modify, not methods and classes. 1. Final can modify variables: clas…… -
How to make a monthly salary of 20000 for java development in Beijing, and what level of technology is required?
Java programmers with a monthly salary of 20000 are intermediate programmers. The technology is a little better, but i…… -
The difference between string, StringBuilder and StringBuffer
< span style="font-size:14px;"> I recently learned about StringBuffer. I have many questions in my mind. I sear…… -
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List collection
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
Concurrenthashmap summary (medium)
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Summary of concurrenthashmap (Part 2)
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Java lazy initialization small example
< span style="color:#808080;"> 1. Why use lazy initialization: @ h_ 419_ 1@ < span style="color:#808080;">…… -
web. What are the main configuration files in XML and what do they represent?
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
Simple IO flow
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
JDBC connection pool principle
This is the back-end small class of the monastery. Each article is shared from [background introduction] [knowledge an…… -
Java controls the reference type of classes and makes rational use of memory
Java provides Java Lang.ref package. The classes under this package are related to the garbage collection mechanism Fi…… -
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……