Return to apply for a job, really not many people imagine that “unbearable”.

Traditionally, there aren’t too many job openings in November, but this year North America continues to scoop up workers, and the situation is even better at home, where the big companies are putting up big openings.

  • Huawei will expand its recruitment of 2021 graduates to 8,000
  • Bytedance announced it would hire 10,000 more people by the end of the year
  • Tencent released overseas advanced batch internship only for overseas students

Xiao J, who has been working in the US for five years, had planned to return to China last year and finally returned to China in July due to the epidemic. After more than two months of interview, little J was recruited by Ali and got the highest salary in P7.

In recent years, the rapid development of the Domestic Internet industry, the head of the big factory lift “competition”, especially for fresh graduates and overseas returnees are particularly friendly.

Little J’s experience is far from unique! The package of big factory technical post can be said not the biggest, only bigger…

It’s not going to work like a North American interview

Although the packages are bigger than each other this year, the job hunting environment in North America and China is very different, and you may step on the pit if you are not careful.

Want to interview domestic big factory, copy North America that set of methodology is useless. Therefore, Based on his rich practical experience and systematic analysis, Mr. Yang Xiao summed up three interview materials for large domestic factories:

★ Domestic big factories will basically test dynamic programming (DP), however, only Google and FB in North America like to test, need to focus on preparation.

The unspoken rule of large factory recruitment is to raise the ability requirement one level, grade assessment down one level. ** If you want to get a P6+offer, you should at least meet the recruitment requirements of P7.

★ The basic strategy of the interview is to continue to dig deep projects through the resume, focusing on your understanding and depth of the underlying principles, half a bucket of water under the people difficult to muddle through.

P8 senior technical expert Yang Xiao teacher, condensed more than 10 years of experience in interviewing others and large factory interview shortcut, brought ** “Java senior engineer P6+” ** live sharing.

More interview routines & back-end interview questions will be shared for free in the live class

Big factory must test the bottom source code, apply template high salary ashore

The basic strategy for large companies to interview Java programmers is to continue to dig into projects through the resume, and the interviewer’s questions will be one after another, and many of them will be asked the floor.

In fact, this kind of topic also has a template, Yang Xiao teacher summed up the standard answer of this kind of topic should be by ** “know what, know why, know how to use” three levels 👇

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

The correct answer is:

**String, StringBuffer, StringBuilder, ** Their differences: StringBuffer and StringBuilder both inherit from AbstractStringBuilder. StringBuffer is thread-safe. Concurrency is mandatory in use scenarios StringBuffer, iterated Mandatory StringBuilder Common scenarios Select String to avoid unnecessary type conversion overhead

Abstractstringbuffer and StringBuilder both inherit from the abstract class AbstractStringBuilder.

You can also score points by interpreting String’s source code.

For example, you can say that final modifications — > immutable — > generate a new String for each operation. Compare StringBuffer with StringBuilder — > mutable values, concatenated String overhead.

FLAG senior architects and BAT senior technical experts work together

“Java Senior Engineer P6+” by FLAG E5 architect Linghu Chong teacher and BAT senior technical expert Yang Xiao teacher strong cooperation, interested students must not miss it.

This course starts from Java core knowledge points and practical exercises, explains typical answers and analysis of test points, leads you to understand the ability behind the questions, and promotes you to the necessary technology stack of big factories.