Three sides ants gold dress and share the interview experience summary (have to take the offer)

one side

1. After HashMap chain length greater than 8 will be converted to red-black tree you

2. Such as scenes, HashMap initial array length is 8, only the first element has a value, and there are eight on a list, an array of other seven other positions are empty, why should this time be converted to a red-black tree rather than stored in the array it?

3. What added to the lock between ConcurrentMashMap segmented lock, between reading and writing are mutually exclusive it?

4. After the three-way handshake will happen if the connection has not

5. The principle of how the kind of volatile, it is how to achieve read from memory?

6. Use lock the lock, if it is an interface, its implementation class what, what is the difference?

7. What InnoDB isolation level is that it can prevent phantom read it? How to avoid?

8. The realization of what the underlying index is a brief introduction.

Two faces

1. Tell us about the spring of AOP

2. Mybatis and hibernate difference with the pros and cons

3. What type of data redis

4. Handwriting a singleton

5. Use technology stack

Three sides

1. How to understand the memory leak problem? What situation will lead to memory leaks? How to solve?

2. Understand how strong consistency, monotonic consistency and eventual consistency?

3. Distributed Lock What solutions?

4. How to solve the problem Redi cache penetration?

5. Redis hash algorithm what is?

6. Redis cluster program should how to do? What are the solutions?

Non-technical issues

1. Why should you, you compare the advantages and what are the other contenders

2. What do you want to ask me

3. If the company requires you to work overtime do you have a problem

The overall feel of the interview, the interviewer is very professional, very familiar with the basic knowledge required, we must be prepared before the interview and then go to the interview. LeetCode title should brush.

Remember before the interview be sure to brush the question and preparing items on the resume are not familiar with do not write up, ready to write up the project 2-3 technical solutions.

---

I took part an answer to the above question collated made the documents that are needed can be forwarded [+] attention, then private letter I [information] to receive a free

Here are some screenshots to show information