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Spring concurrent JVM tuning confused me directly and explained java development in simple terms

Ali

Attach great importance to project experience

Ali usually has five rounds of interviews , There are about four rounds of project-based technology asking about the implementation mechanism 、 Improve the technical solution 、 What we think is insufficient , Implementation principle of technology stack , Are there any other alternatives , It involves the principle of middleware and so on .

Pay attention to technical principle

You can't just understand the implementation mechanism of your own project , Be sure to know the implementation mechanism , So we usually have to work hard to understand the technology stack of the project , for example Spring、 Message queue 、 database 、 Cache should be understood at the principle level , Temporary cramming Xiaobian doesn't think it's of much use , Or in daily development, we should think more and summarize more .

The written part is very important

Some company technical managers may not need to write code , Let's meet business requirements temporarily , It could be blinded , So we usually have to practice more , The general code also does not have the code prompt , You need to be familiar with regular functions , Also pay attention to variable naming , Develop good naming habits .

Value every interview opportunity

Ali has a department and can change its appearance , But there will be interviews , If the interview record is poor , The interviewer at the back will take some risks to get you through , So pay attention to every opportunity to meet Ali , It's said that many people come in only after meeting three times , More than half a year is needed every time .

Ali's interviewers usually start from one point , The whole , In depth , Until you can't answer , Another question to start “ Russian Dolls ”, Of course, the problem doesn't go away from the technology stack in your resume , So it's still that sentence , Pay attention to every technical point you write on your resume .

byte

Most attention to algorithm

If you don't brush the topic, it's almost useless , Unless, of course, you're very good at algorithms , When I didn't say ;
Every round of interviews 1~3 Algorithm questions , The difficulty varies from person to person , In general, the front project and basic technology chat well , Will give way easy or medium Difficult , If the conversation is not good , Or have no eye contact with the interviewer , It may be difficult .
Here's a tip : Brush with the same type , Generally, it can be divided into these categories : Linked list 、 Trees 、 chart 、 Dynamic programming 、 greedy 、 State machine, etc .
Here's a tip : Brush with the same type , Generally, it can be divided into these categories : Linked list 、 Trees 、 chart 、 Dynamic programming 、 greedy 、 State machine, etc .

A lot of spelling

Pay attention to algorithm

I remember the first interview , The interviewer didn't say a word in the video , Let's do four arithmetic problems in half an hour , Finish and start the interview , By the way, the interview is in the evening 22:00 At the beginning , Your products ;
Value candidates' background , Pinduoduo tends to 985 People with educational background or large factory experience , Headhunter friend said that , After all, e-commerce , We've been digging Ali people ;
A lot of money , It's late after work , There is a friend who is fighting a lot. The average home is 1 Some more , Only one day off a week .

Meituan

Like to ask JVM Optimize

I feel that there are many friends going to the meituan interview , All got offer, Overall, they like to ask questions about virtual machines , I know meituan has done a good job in virtual machine optimization , The other is MySQL Database related , Sub database and sub table 、 Indexes .
Attaches great importance to Java Basics , What's involved in your project Java Basic knowledge will give corresponding code problems , It's more involved Java Basic concepts , Pay attention to basic skills of programming .

Finally, I hope I can help you !

Thousands of people have to remember : Multi brush questions !! Multi brush questions !!

Before the algorithm is my hard wound , It took a long time to make up for it , Algorithms are the soul of programmers !!!!

Limited space , The following is only a screenshot to share some of the resources !!

(1) Multithreading ( This is represented by multithreading , In fact, I compiled a book JAVA Core architecture note set )

spring Concurrent  JVM You confused me directly , Explain profound theories in simple language Java Development _Java

(2) Brush algorithm problem ( And Zuoshen's algorithm notes )

spring Concurrent  JVM You confused me directly , Explain profound theories in simple language Java Development _Java_02

(3) Face the + Analysis of the real problem + Corresponding notes ( It's comprehensive )

spring Concurrent  JVM You confused me directly , Explain profound theories in simple language Java Development _Java_03

(4) Video learning ( part )

ps: When you feel tired or unable to learn , Video is a good choice

ad locum , One last word : Wish you all offer To get the soft !!

This article has been  CODING Open source project :【 A big factory Java Analysis of interview questions + Core summary learning notes + The latest explanation video + Actual project source code 】 Included

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