Quit every day, strong offer Which?
Small partners since last year, has been complaining to quit, a lot of large and small companies interview, but the total did not get a satisfactory offer, package or too low, or is abused interview. After losing previous interview, and finally understand what a solid foundation, the earth was shaking. The interviewer for a casual look in-depth knowledge, I could not answer, so, also how can interview?
However, recently received news of a small partner, Ali has got the offer, the company is large enough, base can be, though a P6, but still vaguely felt that he was satisfied.
In fact, I'm still a little confused, before his foundation is very general, loud noise suddenly got Ali's offer. Later he did not hold back, asked him:
"You are doing recently, and Ali interviews have asked you anything? "
As a result, this guy actually has been the past six months in closed-door practice, some basic source are slowly eating again.
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The most basic HashMap and ConcurrentHashMap
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Source thread pool implementation
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Blocking queue associated implementation BlockingQueue
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ReentrantLock implementation and the realization of the principles of the internal synchronizer Sync
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The principle of the Future
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How AtomicXXX is running
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...
I finished listening to him, the feel and the relevant contracting system implementations finishing again.
In addition to the JDK source code, but also pick up a middleware redis she was more interested in-depth study of the case.
Hey, you on the red this attitude, I also wanted to give you offer.
However, when it comes to the source, some students seem more offensive, always think it will be written into the code, why should we go to understand the source code is how to achieve?
Look at a few of the benefits of source code:
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Learn how to optimize performance, design patterns from source code
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In-depth source, in order to understand the truth
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Understand the source code in order to better solve the problem
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You know the source, the interviewer understand you
How to read the source code, it more efficient?
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Starting from the problem, see a problem with source code
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Debug source for learning
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Write to write, take notes
To learn the system can refer to the following mind map:
Well, I hope you have a good habit of reading the source code, easy way to get the interview the interviewer Root of the Matter problem. Finally, share some source code and frame video, with video, may be able to reduce the threshold a little early