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This article refers to the fourth edition of Java programming ideas, and makes some summaries combined with their existing knowledge. At the bottom, data in Java is manipulated by using operators. The use of most operators in Java is consistent with that in C, but Java has also made some improvements and optimizations. In this article, I wi ...

The last one shared "understanding JVM in depth", and this one shared "Redis five data structures and three advanced data structure analysis". preface The most important and fundamental part of Redis is its rich data structure. The reason why Redis stands out is that it has rich data structure and can support a variety ...

1, Theory 1. Loading and execution of Java program The running of Java program includes two important stages: compiling and running Compilation phase The main task is to check whether the Java source program complies with Java syntax, and if so, it can generate normal bytecode files. Bytecode files are not pure binary files, which canno ...

cause Recently, when I was working at home, I encountered some operations that need to process some video files. There are many interfaces for processing pictures in a cloud storage that the company has been using. However, some video processing needs to open other services. After making a circle, I'd better decide to process it myself to save ...

Introduction to Docker What is Docker? To tell you the truth about what Docker is, let me show you what Docker is through four points. Docker is the world's leading software container platform, developed and implemented in the Go Language.Docker frees developers by automating repetitive tasks such as setting up and configuring development en ...

Recently, I used Python and wrote several crawlers to practice. There are many online tutorials, but some can't climb. The main reason is that the website is often changed, but crawlers still have a common idea, that is, downloading data, parsing data and saving data. Let's talk about it. 1. Download data First, open the website to be craw ...

Technical work should be rewarded Like and watch again to form a habit hutool actual combat (take you to master various tools inside) directory Purpose: IO tool class (write content to stream) Usage scenario The IO tool class is only used to read and write auxiliary streams and is not responsible for closing streams. The reason is that ...

1, Extremely simplified deployment One click deployment with docker advantageshortcomingSimple, fast, true one click deploymentThis is a miniaturized deployment and is suitable for private use. If it needs to be used by more than one person, it is recommended to adopt the normal deployment mode 1. Install docker centos 6 installation met ...

This chapter discusses two basic program structures, judgment and loop. Condition control if statement When the condition is true, execute the code after if; Otherwise, do not execute. if condition: code When condition is True, execute code. cel = int(input('Enter today's temperature:')) if cel >= 30: print('Turn on the air co ...

preface The notes are based on black horse's Netty teaching handout and some of my own understanding. I feel that this is a very good video I've seen. There's basically no nonsense. Video address: Black horse Netty . Here is. Or this Code: public class TestSourceServer { public static void main(String[] args) { new ServerB ...