With the increase in consumption and the increasing cost of living, everyone hopes to get a salary that can afford to support a family, can afford to pay, and even have some surplus. Therefore, when choosing a job or changing jobs, they will tend to some large companies. For example, Dong Ge’s Jingdong, Jack Ma’s father Ali, Yiming Big Brother’s today’s headlines... They want to bring a good life to their families through their own efforts, but the results are often not satisfactory.
Preface
This guy is from the 2015 Beijing Institute of Information and Communication Technology. The major is to engage in communication networks, which means that as much hardware as necessary. Let's talk about why he entered the back-end research and development of byte. It was his senior who played the game and forced him to drag him from the hardware. Hey, at that moment he was going farther and farther on the road of programming.
Ahem, digress... I believe everyone has heard that Internet companies are popular, with high salaries and a sense of accomplishment in doing code. That's right, he chose to be a programmer after graduation. But the tall buildings are on the ground, and a layman still needs expert guidance to come in. So the senior who pulled him into the pit naturally became his guide (bao) guide (fu) guide (dui) teacher (xiang). Thinking about the program, there are still a lot of questions. It is really undesirable to work behind closed doors. In this way, I used the school competitions and projects to practice hand rubbing projects, and also exchanged a lot with seniors and sisters of the same department. After going back and forth, he confidently took his resume to Ali. Of course, kneeling orz still kneels completely.
After experiencing these things, he has since decided to concentrate on Java. After the direction is established, he will consider upgrading the technology stack!
Compensation after establishing direction
There is a good saying, " Reading breaks ten thousand books, writing as if there is a god." To become a qian coder, you must read more books, read more newspapers, eat less snacks and sleep more~
With a reluctant personality, I bought a large number of books recommended by colleagues and some big cows: ** "The Definitive Guide to Java Performance", "In-depth Understanding of Java Virtual Machine 2nd Edition", "Java Data Structures and Algorithms", "Spring Practice (4th Edition)", "Java Core Knowledge", "Java Concurrent Programming Practice", "Java 8 Actual Combat", "Spring Cloud and Docker High Concurrency Microservice Architecture Design and Implementation", "Netty Authoritative Guide", "Java Start "To the Master", "Multithreading and High Concurrency"** and other classic books.
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I also found a lot of learning materials, advanced videos, etc. on the Internet, and I often consulted with colleagues and Daniel in the company!
Small turn
So calmed down and studied for half a year, and finally successfully got a 35*14 offer recently in a major Internet company
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After working for more than 2 years, the fastest growing period was during this period. When he met good peers and leaders, he found the right way to learn, which also made him understand the importance of systematic technology stack .
The path of life is slow and slow. Use every minute and every second of your time to learn to improve yourself. Learning does not require passion, but long-term planning. Here is a mind map. Everyone can check the missing and fill up the vacancies and plan by themselves:
P8 HD map acquisition method
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Framework source code analysis
MyBatis is an excellent persistence layer framework that supports custom SQL, stored procedures, and advanced mapping. MyBatis eliminates almost all JDBC code and the work of setting parameters and obtaining result sets. MyBatis can configure and map primitive types, interfaces and Java POJOs (Plain Old Java Objects) as records in the database through simple XML or annotations.
Concurrent programming
From the perspective of programming, concurrent programming hopes that certain mechanisms can be used to allow the computer to perform multiple tasks in a period of time.
Microservice
Microservices are an architectural solution for building applications. Microservice architecture is different from more traditional monolithic solutions, which can split applications into multiple core functions. Each function is called a service and can be built and deployed separately, which means that the services will not affect each other when they work (and fail).
Performance tuning
"Performance tuning Performance tuning refers to providing software with better performance, which is used to deal with system response speed being too slow, etc. Introduction What is performance tuning? Generally it is when users complain about "too slow" and "insufficient performance" , "Software and hardware need to be upgraded" and other issues, to provide better performance. But it is not to solve the user said "this system is ruined", "it won't work" and other problems.
It is because of systematic learning during this period that this interview went so smoothly~
some advices
1. Java core knowledge points
"Java Core Knowledge" is a must-see. As a reference book for the Java junior programmer exam, it is also a good supplement.
Two, Java interview assault
The problems of interviews and written examinations are often not included in "Java Core Knowledge". So, be sure to read all the problems in "Java Interview Assault", which come from here.
After reading this pdf, basically the java language test is invincible.
Three, JVM performance tuning
Grasp the key points and catch them all in one go. The book Java and Patterns is enough. You can add another book "JVM and performance optimization knowledge points".
Fourth, the database
No system can do without a database. Paradigm, pk, fk, join, sql, performance and optimization cannot be escaped. It is enough to find a "SQL Server Collection", "SQL Server Administrator's Guide, etc.".
5. Test (performance, unit)
Finding the "software testing", Junit, etc., is basically enough. If it is not an interview test.
Seven, data structure and algorithm
Most big companies like to examine data structures and algorithms. I highly recommend the "Programmer Interview Guide" written by Zuo Chengyun. After reading it, Dachang is almost up to you.
8. Architecture design
If you want to be an architect, you must look at Sun's Architect Exam Guide. There is also this "J2EE Architect Handbook", which is good.
Nine, framework and open source
Swing and SWT, Spring, Struts, Hiberlate, JSF, EJB3, Seam. If you are not familiar, do a few samples. And find their respective "**Action" book, carefully understand its system structure and model. Can tell their respective principles, advantages and disadvantages, and application scenarios.
10. Management and Software Engineering
If you want to do project management, or want to perform better. This is a must-see. Conceptual things are not difficult. It is recommended to study RUP, XP, CMM, TSP/PSP, PMP, Human-Month Myth, Humanware, Management. Basically enough to deal with project management interviews.
11. English
The difference between high salary and non-high salary lies in English.
Companies that speak English generally have higher salaries than those that do not speak English.
Technically speaking, not many good spoken English.
Therefore, if the same technical level, who can speak English, enter a foreign company, the salary will be increased by 20% or even more
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Spring source code design
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Redis
Design Patterns
Multithreading and high concurrency
JVM tuning
After following, friends in need can like + after following me, click on me to receive it ! Receive access to previous Java advanced architecture materials, source code, notes, and videos. Dubbo, Redis, design patterns, Netty, zookeeper, Spring cloud, distributed, high concurrency and other architecture technologies
Collected from my colleagues and seniors in Dachang (Collector's Edition)
Related e-books, underlying source code
White paper on big projects done
Conclusion
Many people may not have much confidence in themselves. In fact, a "miracle" can happen to everything, and the key to this "miracle" is to create it on their own. No matter if you are a little cabbage bird or a great technologist, you can't afford to learn this thing daily.
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Lele alone is not as good as others. All the study notes and interview questions mentioned in the article are given free of charge. I wish you all good health and you can get your favorite offer from the big factory through learning~