A programmer with 7 years of experience, he joked on the pulse: 7 years of Java, 3 years of technology. Face small companies even less than 3W, big factory face 7 all hang. A few years ago, I thought it was too slow for others to get a P7 at the age of 28.

However, the reason for the failure of dACHang was poor basic knowledge and technical depth.

In fact, there is more than one classmate who thinks dachang is difficult to enter. When everyone complains that it’s hard to get into a big company, what you really need to think about is how to achieve the technical depth that the interviewer is looking for.

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  • Algorithm/front-end /Java/C++ engineer written interview questions

  • Corporate culture and BQ of domestic Internet giants

An Ali original take you to see the factory interview standards

The way big companies interview is usually blunt:

1. Introduce a paralyzing candidate with a simple topic

2. Find an Angle or tool for the candidate to match the scene

3, finally dig the principle behind

The interview habit of large factories is to start with simple questions, and then slowly dig into the technical difficulties, so as to examine the candidate’s technical level.

Here’s an example of ali’s most basic interview question:

What is the difference between the JDK and the JRE

Such a simple question I believe everyone can, you answer I will continue to ask

What other command-line tools do you know about besides Javac, and what are they used for?

Many people only answered JCMD, JPS, jinfo, jstat, jmap, and jStack, but couldn’t remember their respective uses. Answer out of the students do not be too proud, there are soul torture behind

Have you ever used Jstat? What parameters do you know?

Please see the following table 👇 for detailed parameters

I’ve got 95% of you up to this point, but there are more questions you can ask as you go down.

Chapter 9, together with Teacher Yang Xiao, opened the “Java Senior Engineer P6+” course for technical interview of big factory. This paper analyzes the recruitment standards and technical difficulties of large factories.

I signed up for the first two chapters for free

Deep interpretation of source code factory offer is no longer difficult

In the big factory interview, read the source code will definitely make the interviewer a flash, such as this:

“What are the classes in Java for manipulating strings? What’s the difference?”

“StringBuffer and StringBuilder both derive from the abstract class AbstractStringBuilder.” The interviewer will know that you’ve read the source code and will score you points.

I signed up for more source code analysis 👇

SpringBoot project actual combat to restore the development scene

For companies with slightly more complex business logic, project experience is highly valued in interviews. For many people who are not exposed to overusable architectures, it is difficult to fill this gap in a short time.

The course “Java Senior Engineer P6+” includes the actual practice of high availability projects. Through the systematic SpringBoot project teaching, it takes you to restore the real development scene and build an Ant Financial backend.

Industry a few words, less take 3 years career detours

Yang Xiao teacher said, a lot of job seekers with certain work experience, in the interview will appear: basic knowledge is understood, once in-depth excavation can not answer the question, in addition, more or less there are the following 3 common faults:

1. Limited to the normal development skills of adding, deleting, checking and modifying, and lack of careful preparation for technical in-depth topics;

2. Java skills are not systematic and are limited in dealing with technical breadth and principles;

3, do not know how to package the resume, on-site interview does not pay attention to details, it is difficult to impress the interviewer.

In view of these problems, Mr. Yang Xiao’s “Java Senior Engineer P6+” will help the backend engineers of Dachang 👇 from three aspects

Technical depth + Technical breadth + technical soft power (RESUME and interview performance)

Students high praise

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