Yesterday afternoon appointment telephone interview today 11:00, the lady said Tuesday about half an hour - one hour, I thought the little sister is HR, did not expect the interviewer. . Amazing little sister
one side:
Self-introduction (a bit short)
- Asked about the most familiar language: java, java back on all of the issues
- LinkedList underlying arrayList and implementation as well as the advantages and disadvantages, and why, and so on
- Hashmap underlying implementation approach to hash conflicts, use some hashmap should be noted that the principle (1.7 and 1.8) and concurrentHashMap the realization hashtable
- equals rewrite how to write, how to write hashcode why the same object (equals is true) to be the same as the hashcode
- What design patterns used, and why. . .
- Arrays.sort () how to achieve the underlying
- Handwritten quick drain --- made a point to go online to write link
- jvm memory, class loading mechanism
- You understand how thread-safe. .
- Speak a GC (landlord said cms) and other GC algorithm
- Stack overflow exception which parameters should be adjusted so that bigger stack capacity
- Four characteristics of the database, four isolation mechanism, the database how to ensure transactional consistency
- the boolean value assignment is atomic right? How to ensure atomic, scenario analysis should be how to ensure atoms
- What are distributed framework used, the underlying know how to achieve it
- spring of IOC and AOP, you use the example in the project, how to achieve the underlying
- Have you ever written interceptors, know how to achieve it
- Did you ask me
Face almost 1 hours 15 minutes, quite a long time, the little sister who is very nice, and some do not understand the middle I had to say what I think it is a realization of how how Miss ,, she said Tuesday you said a little bit wrong ,,
I asked which department to go, I want to say a little bit the bottom, said Tuesday Miss our department is mainly used, but other departments Ali had to do, I'll probably finish it
said there should be 1-3 behind at the end face, I might ask algorithms. .