Since last year, my friend has been talking about job-hopping. I have interviewed many companies, but never got a satisfactory offer. Either the package was too low, or I was abused in the interview.
After the previous several interview failure, finally understand what is called the foundation is not firm, shaking the earth. The interviewer casually for a knowledge point in-depth investigation, can not answer, so, how can you pass the interview?
However, recently, I received the good news from my friend and got the offer from Ali. The company is big enough and Base is ok. Although it is P6, I still vaguely feel that he is very satisfied.
In fact, I’m still a little confused, why he suddenly got the offer from Ali after his previous foundation was so ordinary. Then, unable to help himself, he asked him:
“What have you been doing? What did Ali ask you in the interview?”
As a result, this guy has been in the last half of the year unexpectedly, some basic source code slowly gnawed again.
- Basic HashMap and ConcurrentHashMap
- Thread pool source code implementation
- Block queue BlockingQueue related implementation
- ReentrantLock implementation, and the implementation principle of its internal synchronizer Sync
- The implementation principle of Future
- How does AtomicXXX work
technical
- Monitoring in the project: what are the common monitoring indicators?
- What are the technologies involved in microservices and the issues that need to be addressed?
- What do you know about the registry?
- Are you aware of consul’s reliability?
- Have you gone into detail about Consul’s mechanics? Has it been compared with other registries?
- The project uses Spring a lot. Do you know the principle of Spring? Principles of AOP and IOC
- Besides automatic configuration, what other differences does Spring Boot have compared to traditional Spring?
- What do we know about Spring Cloud?
- The life cycle of Spring beans
- How is HashMap different from hashTable?
- Object hashCode () {equals ();
- Hashmap thread unsafe occurrence scenario
- Online service CPU is very high how to do? What steps can be taken to find the problem
- What thread pools are in the JDK? Thread pools, by the way
- What are the common methods of SQL optimization
- Order of SQL indexes, order of fields
- Is the SQL using an index? (What tools do you have?)
- The difference between TCP and UDP? TCP data transmission process how to achieve reliable?
- Tell me what sort algorithm you know
- Find the median of an array?
Technical interview answers and lessons learned are documented
Technical interview answers and experience summarized in the form of documents to share with you (more comprehensive details)
After forwarding + attentionClick here to get the document collection method
After listening to him, I felt that the relevant implementation of the package was systematically organized again.
In addition to JDK source code, but also picked a more interested in their middleware Redis, SQL, in-depth learning.
Hey, for your attitude, I also want to offer you.
However, when it comes to source code, some students seem to be disgusted, always feel that you will write code, why must you go to understand how to achieve the source code?
Several benefits of looking at the source code:
- Learn how to optimize performance, design patterns, etc., from source code
- Go deep into the source code to understand the truth
- Understand the source code, to better solve the problem
- If you know the source code, the interviewer knows you better
How to read the source code, just more efficient?
- Start from the problem, with the problem to see the source
- Debug oriented source code
- Write, write, take notes
Well, I hope you have a good habit of reading the source code, easy to get the interviewer to question the interview way. If you still have no clue, I am here to share some source code and framework actual combat video materials and the principle of the interview question answers, including the guy interview ant Financial back feeling and summary!
After forwarding + attentionClick here to get the document collection method
