Said this year's situation is bad, look for all kinds of work did not go well, but to me there is a student, every interview is to get the offer, I deliberately invited him to come to share with you the experience, though not necessarily the same people in different technical fields but a lot of things are interlinked, I hope this can help.
The following is the text.
Preface
August interview after another out a bit, look at their current market value and, in general, or very satisfied. He interviewed several well-known factories, and have got the offer. Are millet, the US group take-away, unfamiliar street, deft.
Resume how to write
a good resume is often more effective. I hop a year on average work experience, appears to be very bad, why there are a lot of interviews but also offer it? Boss directly employed on RD tend to have a lot you want to resume, they tend to be leader of the employing department, therefore, outstanding professional skills and the work done in the past year is particularly important. Here is my list of skills.
Familiar with object-oriented programming, familiar with Java, kotlin other development languages, concurrent, JVM, etc. have a certain understanding
familiar with Android development, understand the Android version differences
familiar Custom View, animation and other techniques familiar news, events, distribution and other mechanisms
familiar Android Performance Optimization capable of rational use of performance problems encountered in processing tools
familiar NDK programming, familiar with JNI
familiar with common open source frameworks and understand their internal implementation principle
familiar Javaassit, ASM, AspectJ bytecode modification and other technologies
familiar with Java layer Hook, Native layer Hook , rational use and can solve practical problems
familiar gradle, be able to write a variety of plug-ins on demand gradle
for Android plug-in technology, hot fixes, which are more in-depth study
familiar with common design patterns, and able to design a good code
of TCP / IP , Http, Https and so have some knowledge
to understand Android frameWork and part of the process and implementation of the principles
have some knowledge of Android reverse, there is a certain shelling capacity
has certain infrastructure capacity and strong problem-solving skills
coupled with the author in the past year, we have been doing work related to infrastructure, Therefore, there will be a good résumé attractive.
Preparation before the interview
工欲善其事必先利其器, in order to get a satisfactory offer, there must be some preparation. Following out of something is something I think should be prepared (although only prepared interview August algorithm).
CV mentioned, must be ready, do not give yourself digging
Java ready, Java-based, some companies will be deducted from very thin, Java data structures related classes, JUC, Java language design,
the JVM-depth look at the recommended understand the book Java virtual machine
network section, recommend a look at the graphic TCP / IP, HTTP illustrated two books, if they feel satisfied, you can also see some of the other, such as the Detailed TCP / IP volume
Android Framework, recommended to see the gityuan blog, look at the code and its own
third party open source library, the author has read the code to maintain this habit, it will not deliberately prepared
algorithm, it is recommended to look at wins the offer, leetcode lightly brush some of the questions you can, not too difficult to
gather their own the algorithm problem
some quality interview experience usually collected
believe that everyone has their own method of review, there is not much to say.
Interview process
good interviewer will discover the advantages of the candidates, they will ask questions based on your resume to write something, because, to write on your resume out plainly, you can. During the interview process, do not be nervous, to highlight its own characteristics, intended to guide the direction of their own good. Better attitude, be confident, if they do not own, and he will not try to mention a little think about, highlighting their ability to solve problems.
Then there is the number of interview questions.
Face questions
need to answer the following interview questions and highlights private letter I <Interview> to
millet
-20 minutes electrical surface
Simple communication of your work experience
to talk about the past year doing
basically based on the CV
side 40 minutes
Before the work content presentation
start time how statistical processes, process process starts, the process activity initiated
jvm gc
difference jvm heap and stack allocated on the stack
distinguish four kinds of reference
performance optimization
Handler
Binder
algorithm problem. The largest palindrome string. There getmin stack function, time complexity O1, adding two numbers
dihedron 40 minutes
Self-introduction
plug of the
binder, after several memory copy, from where to where,
okhttp
cross-process eventbus
design pattern six principles, common
activity a to b life cycle changes, view is displayed when
the event distribution mechanism
pms activityrecord
see source of power
jni, jnienv role, jni thread switching
performance optimization, fd limit
algorithm problem. Random number k of printing
on three sides, about 60 minutes
Under the understanding of said Android's
event distribution mechanism to discuss the scene for a long time
mvp advantages and disadvantages, mvvm
album search, design. We discussed for a long time
their business introduced the next
career planning
US Mission takeaway
Interview ask a lot of questions to forget. Side of the interviewer heavy, breadth + depth + foundation should have.
jvm memory partition, those are private to thread
class loading mechanism
to do something
generic principles of
a stroke algorithm
list to heavy
slide of a scene can be a conflict, nestedscrollview
Gradle plugins related
packaging process
tcp / ip protocol layering
http request packet response packet
https link the process of
doing things most successful seeking a sense of
asm aspectj and other ways to change the bytecode
career planning
find what kind of work
Why leave such
hybrid
street street
Street street interview questions did not remember how much, in general, and the other is not much difference, it is to look at the things you do are not true done, how to value.
Database optimization
network optimization
multiplexing, used udp achieve quic
reflection optimize
introduce what they do, and
why the separation and the like
apm
hot fix, tinker
deft
+1 hr technical face surface 3
side weight java, two faces heavy Android, and projects its own characteristics.
Side java
ArrayList LinkedList difference, scene, the time complexity of
writing a single example, the role of volatile, why need
volatile how, memory barrier
how to get GC does not reclaim
the data structure of HashMap, disturbed function, expansion
concurrency, locks, AQS, CAS and the like
thread pool, thread pool principle, species. ForkJoin thread pool, because I was the only one mentioned ForkJoin thread pool the most recent period, it is more extra points.
Algorithms - Flip chain
dihedral ask according to his resume
Acting, Acting static, dynamic agency, CGLIB
asm javaassit
the Java Hook, Hook Native
network protocols, tcp three-way handshake, and why three, four waving, why four times, three times all right
message queuing
algorithms - binary tree in layers printed
on three sides
Talk business, talk like planning
Summary
Overall, the current market situation in general, to recruit people Ningquewulan, therefore, many companies like technology can be matched to the age of the candidates, in my opinion, three years P6,5年P7 is they are more desirable. I recommend hopping good grasp of these two time points.
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