Advanced Java Engineer Face questions-essays

Recently planned to change jobs, also interviewed a few, because not their favorite so refused some (of course, there are people don't want my ...). ）。 During the interview process, it was found that the investigation of senior Java programmers was mainly about two aspects of knowledge and depth. Here are the questions you encounter during the interview process:

1 How to prevent duplicate submissions
2 How to track a session in Web development
3 100,000 how to efficiently query the maximum value of the third record
4 the difference between HTTP and HTTPS
5 Request the whole process of http://www.baidu.com
6 Whether static can be inherited
7 differences between String, StringBuffer, and StringBuilder
8 A website A module slow how to check why

In response to the above questions, you can first think about how to answer these questions.

Advanced Java Engineer Face questions-essays