Hello everyone, I am the second brother who is pretending to study hard.

Today, I would like to share some Java knowledge summary projects that make people say “wow”. My brother dares to say that as long as you finish reading any one of them, you can become a big man!

Before sharing, casually Lao snack inside some feelings. The previous article on computer basics and getting me hooked turned out to be the best article I’ve read in the last two months.

Some readers said they were very grateful to me for helping him out of the confusion and usher in the vitality.

Other readers left comments saying that although they were depressed by the discrimination, they were full of confidence when they saw me as an “excellent” example in front of them.

Other readers left comments saying that I was different from other masters with prestigious degrees, and that the articles were more palatable and enjoyable to read.

There are university students said that I was our specialist to learn the role model;

Other readers left comments saying that they had found a job because of my subtle influence.

Many readers left comments saying that I was their role model and that they should follow my example!

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In short, I feel very warm, and the corners of my mouth turn up when I sleep at night.

Yesterday my sister came home from school to play, and asked me whether I would play the king. I said I didn’t have time to play, but she said it was fun, so she played the game next to me, while I was writing an article, and the voice in the game kept coming from my ears: “I want to be quiet ~ quiet ~ ~” (meaning Lu Ban had died).

Hey, hey, you know what I mean?

In the past, I would have criticized her, why not study hard, don’t think of playing games every day; Now I will not, because I also want to play, but no time, cry cry ~~~

All right, all right, let’s start today’s sharing.

I have starred in the following Java knowledge summary projects, and I will check the gaps in my spare time. Although I have learned Java for more than 10 years, I still feel that I can gain a lot of new knowledge.

1) JavaGuide

I remember watching it some time ago, it was still 98K star, but when I took the screenshot today, I found it was 100K star! Really awesome, after all, gold three silver four, need Java face or more small partners.

I also had a lot of communication with Guide, the maintainer of the project, so I made recommendations in many other places, such as CSDN and Zhihu. The project covers everything from Java basics, containers, concurrency, JVMS, networks, operating systems, data structures and algorithms, databases, and common frameworks such as Spring, MyBatis, Netty, Zookeeper, Spring Boot, and so on.

2) toBeTopJavaer

Yes, H god’s Java path to god, the name sounds like a very powerful feeling.

Several of his mind maps were particularly helpful in giving me a systematic idea of the entire body of Java knowledge. I strongly recommend that you take a look at the Java concurrent programming knowledge points, particularly detailed.

  • What is concurrency?
  • What is the difference between thread and process?
  • Multiple ways to create threads
  • How to design a thread pool yourself?
  • What is thread safety?
  • CPU time slices and atomicity issues
  • Optimistic and pessimistic locks
  • CAS
  • Cause of deadlock
  • How to optimize locks?
  • How is synchronized implemented?
  • How does volatile work?
  • How to solve the producer-consumer problem?
  • Deep understanding of Java and package

3) the advanced – Java

The introduction of this project is very powerful — Complete literacy of Advanced Knowledge of Internet Java Engineers: covering high concurrency, distributed, high availability, micro services, mass data processing and other fields. Oh, shit. I feel really literate after reading it.

High concurrency architectures include message queues such as Kafka, ActiveMQ, RabbitMQ and RocketMQ. Search engines like ElasticSearch; We talked about caching, like Redis; Talked about sub – library sub – table, read – write separation and so on.

Distributed system is about the system split, distributed service framework Dubbo, distributed lock Zookeeper, distributed transaction, distributed session and so on.

High availability architecture includes Hystrix, current limiting, fusing, downgrading, and so on.

Spring Boot and Spring Cloud are mentioned in microservices architecture. Massive data processing inside talked about how to find high-frequency words from a large number of data, how to find the median from 500 million numbers and so on knowledge points.

4) JCSprout

The author is a friend of mine, crossoverJie. He plays basketball very well and is very nice. Remember when I began to write the public number, my brother’s pure smile also recommended us under the same article, then added wechat, Jie is a technology geek, I especially appreciate his attitude to technology!

There are not only collections, multithreading, JVM, but also distributed, framework, architecture design, database, algorithm, which can be said that an excellent Java backend engineer should master the core knowledge points, there are ah! It is highly recommended that you take a look at the seckill system design section, which is a good reference if you want to do a hands-on project.

5) Java interview guide

Niuke official production, specifically for Java programmers launched the interview guide treasure book, the question bank are from a large number of real school recruitment interview questions big data for sorting out.

Although I think some of the content is outdated, such as XML programming and JDBC programming, overall, it is very helpful for Java candidates. My advice is to have a mock interview with a friend, either online or in person, to see how well you can perform on these real questions.

6) CS – Notes

It covers not only Java, but also LeetCode, computer operating systems, computer networking, system design, Python, C++.

I recommend you to read “Sword Finger Offer Solution” and “LeetCode Solution”, the code is Java version, I plan to sort out an offline version for you when I have time.

I sorted out the corresponding Java content into a PDF, which covers all the Knowledge of Java, including Java syntax, Java collection framework, Java IO, Java concurrent programming and Java virtual machine, the content is not much, just focus.

GitHub star standard 124K + Java tutorials, super hardcore!

7) architect – awesome

The backend Architect Technology Atlas, as it’s called, sounds like it’s too good to be true.

The contents of the project include:

  • Data structures, including queues, linked lists, arrays, stacks, trees, and so on
  • Common algorithms, including selection sort, bubble sort, quick sort, insertion sort and other common sorting algorithm, as well as greedy algorithm, backtracking algorithm, dynamic programming and so on
  • Design patterns
  • Operations, including continuous integration (CI/CD), testing, virtualization, container technology
  • Middleware, including Web server Nginx, Tomcat, Apache, Jetty, and timing scheduling, RPC, database middleware Sharding and so on
  • Networks, including HTTP, HTTPS, and so on
  • Databases, including MySQL, NoSQL, and so on
  • Search engines, including Solr, Elasticsearch, and more
  • Performance, including CDN network, performance tuning, and so on
  • Big data, including streaming computing, Hadoop, Spark, and more
  • Security, including XSS, CSRF, SQL injection, DDoS defense, encryption and decryption, authentication and authorization, etc
  • Common framework, including log framework, network framework and so on
  • Distributed design, including scalability design, stability & high availability, database expansion, service governance, distributed consistency and so on

Contents of these projects are very, very big, want to understand all, obviously, but as a navigation chart on hand skills, perfect, if you think now I do not know what Taoism, or all of a sudden lost the goal, just as I give you pick the key go to a deeper understanding.

Especially when preparing for an interview, brush hard for a period of time, and you should be able to have a hard time with the interviewer.

In my opinion, there are two kinds of resources, one is large and complete, the other is small and fine. At the beginning, when we have no goal and direction, we look at this kind of large and complete, just like a map to hold around, do not get lost; Once you have a goal and direction, you need to take the time to go deep, to go deep, to understand the bottom of the technology and the inside of the technology, to become a technical expert.

Give yourself a little more time, give yourself a little more patience, the growth of the road, we accompany all the way, no longer lonely lonely ~

I’m Silent King 2. I hope this episode helps you out. Please give me a thumbs up