Sword refers to the big factory! I am a fan of Ali’s new Java Interview and Advanced Practice Collection, which is suitable for social recruitment, school recruitment and advanced training!

About the interview

There have been many interviews on the Internet, but I think the various interviews on the Internet can only be used as a reference. There are still some differences between your actual interview and it. In addition, if you want to see other people's experiences on the Internet, it is recommended that you look at other people's successful cases and appropriately look at other people's failed cases. It’s okay to see the experience. Whether you are looking for a job or studying normally, this is a better way to test your level. However, be sure not to place too much hope on various experiences and try to improve your comprehensive ability.

Regardless of whether it is a social recruitment or a school recruitment interview, in addition to packing your resume before the interview, the most important thing is to figure out which questions the technical side may ask about. Generally speaking, the following mind map probably covers the technology Interviews may design techniques, but you don’t need to be familiar with each of the above knowledge points. You have to distinguish between primary and secondary. Don’t write on your resume for unfamiliar techniques, and don’t say yourself about the techniques you simply understand. Master!

 

(The following part is taken from my resume. You can make some modifications and improvements according to your own situation (mastery, proficiency and proficiency depend on your own specific situation))

• Basic knowledge of computer network, data structure, algorithm, operating system, etc.: master
• Java basics: master
• JVM virtual machine (Java memory area, virtual machine garbage algorithm, virtual garbage collector, JVM memory management): master
• High concurrency, high availability, high performance system development: master
• Struts2、Spring、Hibernate、Ajax、Mybatis、JQuery ：掌握
• SSH integration, SSM integration, SOA architecture: master
• Dubbo: Master
• Zookeeper: master
• Common message queue: master
• Linux: Master
• MySQL common optimization methods: master
• Spring Boot +Spring Cloud +Docker:了解
• HDFS, Storm, MapReduce, Hive, Hbase in Hadoop ecological related technologies: understand
• Python basics, some common third-party libraries such as OpenCV, wxpy, wordcloud, matplotlib: familiar

If there is a project, the first step in a technical interview, the interviewer usually asks you to introduce your project yourself. The project is the top priority, you can refer to these 4 aspects.

• A feeling about the overall design of the project (the interviewer may ask you to draw the system architecture diagram)
• What are you responsible for, what you did, and what role did you play in this project
• From this project, you learned those things, used those technologies, and learned the use of new technologies
• In addition, in the project description, it is best to reflect your own comprehensive qualities,

How to study before the interview? How to systematically expand their technical scope?

To be clear about the things and directions to be done is nothing more than to brush up the questions and review some knowledge. Then which knowledge points may be involved in the interview and which knowledge points are the key points. How to prepare a technical aspect before the interview, and what kind of knowledge reserve should be made in the middle? How to learn? Do you feel a little fascinated? Don’t worry about the Internet, Lei Feng (small editor me) specially collected a Java full-stack advanced collection ( Java basics, network, Linux, data structure and algorithm, database, system design, etc. ) friends who need only point Like the article, follow me and add the assistant directly to get it

Before the interview, what knowledge of the system should be reviewed?

The first step we must learn from the basics of Java

• Java basics

 

The second step if you want to enter a big factory, I recommend that you start to take a little time every day to learn algorithms and data structures after learning the basics of Java. In order to improve your programming ability, you can also stick to Leetcode. As far as the interviews with major companies at home and abroad are concerned, it can be said that brushing Leetcode has become a way to go.

• Data Structures and Algorithms

 

When interviewing the computer network and operating system, you won’t go too far, but if you want to develop in the architecture, you must not let go of the underlying knowledge!

• operating system

 

• computer network

 

Now the front and back are separated, but the front-end knowledge still needs to be known. (HTML, CSS, JavaScript), of course, you can also learn about simple front-end frameworks such as BootStrap and Layui. There are many resources in this area online.

Then you can enter the database to learn, MySQl, a database that is widely used in major websites. Not only do you need to learn how to write SQL statements, but it is better to understand important concepts such as indexes.

• MySQL

 

Before entering deep learning, some commonly used tools and frameworks must be applied

• Common tools

 

• Common framework

 

• Multithreading

This part of multi-threading may be more difficult to understand and get started. In the early stage, you can briefly understand the basics, and then come back to take a closer look when you have energy and capabilities later.

 

At this point, if we continue to study in depth, we need to understand Netty and JVM.

• JVM

 

• Netty

 

• Distributed and microservices (there is too much content in this area, selective learning)

• Related technologies:

1. Gateway: kong, soul;
2. Distributed call chain: SkyWalking, Zipkin
3. Logging system: Kibana
4. .....

• Spring Cloud related:

1. Eureka: service registration and discovery;
2. Ribbon: load balancing;
3. Hytrix: fuse;
4. Zuul: Gateway;
5. .Spring Cloud Config: Configuration Center;

• In addition, Spring Cloud Alibaba is also worth learning:

 

 

 

This Java Full Stack Advanced Collection consists of two documents. There are pages 524 and 283 respectively, covering all the knowledge points of Java. Whether you are interviewing or as an advanced learning aid, it will be of great help!

Write at the end

Whether you are a beginner or a programmer with a certain foundation, you must learn to allocate your time when studying. There are a lot of things to learn, really a lot. It is enough to figure out which things are the focus and which things are only enough to understand. . You must not spend your energy on learning various frameworks, algorithms and data structures are really important. Leaving this aside, as the saying goes, programmers who don’t want to enter a big factory are not good programmers. Although I have switched to food delivery since I was 35 years old, some things I have done have always been towards the development of architects. of. As a programmer, if you don’t want to learn or improve your skills, then you will be shot dead on the beach by the waves. Then you might as well change your career as soon as possible. Perhaps the income from a street vendor is much higher than your current income. If you have friends who need advanced and interview review, then this document will definitely help you! Friends in need only need to like the article, follow me and add a small assistant to get it