The first surface 2019 Ali Lynx Java team of senior engineers face questions

1. five minutes introduce themselves, talk about their own good and the good of Technology

Self-introduction in order to examine the interviewer's language and summary of general ability, usually interviewers want to hear the following four aspects:

A basic information: There are also basic information on a resume, dictating again as the opening, talk about school graduate, major awards, work experience, time control in half a minute.

B project experience: according to the content of your resume, from far and near in time to talk about the development of the project over, using what technology stack, do much, what's the catch, time control in two and a half minutes

C Technical expertise: to talk about their strengths, which contribute over open source projects, spare time to see what books, whether written blog, to fit the technology stack current job needs, time control in one minute.

D career planning: talk about career planning and long-term plan, said he does not easily change jobs stable and reliable, time control in half a minute

2. Talk about the difference between Treemap and the HashMap?

https://www.cnblogs.com/williamjie/p/9099130.html

3. Talk about the difference between HashMap and ConcurrentHashMap of?

http://www.importnew.com/28263.html

3. Hash algorithm talk about consistency?

https://www.cnblogs.com/lpfuture/p/5796398.html
4. Do you know the GC algorithm and recovery strategy What? What mechanism is GC?

https://blog.csdn.net/rabbit_in_android/article/details/50386954
5. The basic principle of the garbage collector? Whether memory can be recovered immediately? How to take the initiative of informing the JVM garbage collection?

http://www.cnblogs.com/zhangxiaopeng/p/5001171.html
7. talk about Java's parent delegation model

https://www.cnblogs.com/heapStark/p/9221753.html
8. What few core configuration parameters to create a thread pool is?

https://blog.csdn.net/pfnie/article/details/52757002
9. optimistic and pessimistic locking? Reentrant lock and Synchronized?

https://www.jianshu.com/p/66b854d5bd49
10. difference CountDownLatch and Cylicbarrior and are used under Which scene?

http://www.importnew.com/21889.html
11. difference Http and Https Https and encrypted way?

https://www.cnblogs.com/wqhwe/p/5407468.html

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Origin www.cnblogs.com/xiaoyangjia/p/10697324.html