包含标签：Java 的文章
-
Why do you recommend enumerations?
Enumeration is a new data type in JDK 1.5. Using enumeration, we can well describe some specific business scenarios, s…… -
Spring boot (XIV) rabbitmq delay queue
1、 Foreword Usage scenario of delay queue: 1 If the order is not paid on time, the order will be cancelled after 30 m…… -
How to prove that sleep does not release the lock, but wait releases the lock?
Wait locking example public class WaitDemo { private static Object locker = new Object(); public static void …… -
99% of programmers are using Lombok. Is the principle so simple? I got one too| Recommended collection!!!
I believe most people are familiar with Lombok, but little is known about its implementation principle and disadvantag…… -
Six methods of file writing, this method has the best performance
There are only two ways to operate files in Java: character stream and byte stream, and there are many implementation …… -
Several ways to improve string performance by 10 times! (source code + principle analysis)
String type is one of the most frequently used data types. So improving the running efficiency of string is undoubtedl…… -
Rabbitmq series (VI) complete solution of rabbitmq cluster architecture you don’t know
preface This paper will systematically introduce the characteristics, exception handling, construction and use of rabb…… -
Rabbitmq series (IV) rabbitmq transaction and confirm sender message confirmation – in depth interpretation
Rabbitmq transaction and confirm sender message acknowledgement - in depth interpretation Rabbitmq series introduction…… -
MySQL “passive” performance optimization summary!
When you are young, you don't know the pain of optimization. When you meet a pit, you know the difficulty of optimizat…… -
There are 7 ways to create thread pool. It is strongly recommended that you use it
According to Moore's law, the number of transistors that can be accommodated on the integrated circuit doubles every 1…… -
Key value expiration in redis
1. Expiration setting There are four ways to set the expiration time in redis: Let's take a look at the specific imple…… -
Redis transaction in-depth analysis and use
1. Preface Transaction refers to providing a mechanism to package multiple commands and execute them sequentially at o…… -
Spring boot (x) logback and log4j2 integration and log development history
1、 Introduction There are many well-known logs in Java, such as Jul, log4j, JCL, slf4j, logback and log4j2. What is t…… -
Station B true question: how to judge whether brackets are valid?
Today's question is not only the real question of BiliBili's written test this year, but also a classic interview ques…… -
This thread termination will lead to service downtime?
Before we start, let's look at what's wrong with the following code? public class ThreadStopExample { public stati…… -
Detailed explanation of 505 interview questions in “full analysis of Java interview”
"Full analysis of Java interview" is an e-book I released in gitchat. The book has a total of 150000 words and 505 Jav…… -
Dynamic diagram demonstration: two implementation methods of hand rolling stack!
Before we start, let's talk with friends about our plans for the later stage. In the following articles, we plan to wr…… -
Please, stop waiting and notify!
Condition is a thread communication method provided in JDK 1.5 to replace wait and notify. Then someone will ask: why …… -
Java improvement class (I) thread explanation
1、 Overview Before learning thread, let's first understand the relationship between threads and processes: From the a…… -
Well, these four methods for querying the maximum value of sliding window are good
This is a relatively basic algorithm problem. The data structure involved is also what we talked about before. I'll bu…… -
Blood spitting finishing: 13 military regulations for redis performance optimization! The most complete in history
In this article, we will use the following methods to improve the running speed of redis: 1. Shorten the storage lengt…… -
Spring boot (VI) integrates mybatis to operate MySQL 8
1、 Introduction 1.1 introduction to mybatis Mybatis is an excellent persistence layer framework, which supports custo…… -
Several ways of redis persistence — in-depth analysis of RDB
1. Several ways of persistence Redis persistence has the following three methods: Because each persistence scheme has …… -
Don’t ask me how many objects are created by the new string! Let me prove it to you!
I think all Java programmers have been troubled by this new string question. This is a high-frequency Java interview q…… -
Spring boot (11) redis integration is installed from docker to distributed session sharing
1、 Introduction Redis is an open-source log type key value database written in ANSI C language, supporting network, m…… -
The official version of redis 6.0 has finally been released! What’s new besides multithreading?
Redis 6.0. 1 was officially released on May 2, 2020. As andrez, the author of redis, said, this is the most "enterpris…… -
Ubuntu 18.04. 1 build Java environment and HelloWorld
1、 Build Java environment System environment 1. Download JDK Official website address: http://www.oracle.com/technetw…… -
Xiaobai learning algorithm: the best time to buy and sell stocks!
Today, the ant group (Alipay) is officially listed. There is no doubt that this initiative has created a large number …… -
Spring boot (I) quick start
1、 About spring boot Before we begin to understand spring boot, we need to understand spring first, because the birth…… -
Rabbitmq series (III) introduction and practice of rabbitmq exchange
Introduction and practice of rabbitmq exchange switch Rabbitmq series Reading guide After we have the basic knowledge …… -
Interview raids | how does redis query a key from massive data? Attached video
1. Review knowledge points The knowledge points investigated in this topic are as follows: 2 solution ideas 3 keys usa…… -
Rabbitmq series (V) deploying rabbitmq clusters using docker
summary This article focuses on the use of docker, how to deploy rabbitmq cluster and the most basic docker installati……