After a circle, I sorted out this set of interview questions..

I recently saw a post posted by a former Tencent employee , Summary of recent interview results , It's really those three words ： It's numb ……

A senior programmer who worked in Tencent after graduation , For a variety of reasons , Quit . Take advantage of the golden, silver and four job seasons , Internet big and small factories had a round of interviews , It doesn't feel very good , Finally, I only received the employment notice from JD .

A brief analysis of ： One side, two sides hr The noodles have been hung , The reason is that the project is too simple 、 Experience doesn't match 、 The question didn't answer , There are even features that don't match the team hc Freeze for this reason .

I think of many second and third tier companies that Alibaba Tencent came out a few years ago. They talk and go through a process , Now this situation has to sigh that the Internet industry is becoming more and more depressed , A lot of work is hard to do …… And the preparation before the interview is too important ！

For this purpose, I specially prepared a technical advanced with several big men + Project experience + Interview materials , It contains interview questions from more than ten Internet companies 、 Face to face summary and 20 A collection of technology stack data , Read through this information , Technology and interview are not problems at all ; At the same time, there is video analysis of actual combat of large factory projects , The project experience you lack can be accumulated from it .

During this period, there were interviews with large factories , You can hurry up to prepare according to the following information , It is very useful for large factory interview and technical advancement ！！！, You can get the required documents free of charge

Learning route & Ideas

You can prepare for the technical interview from the following aspects , The following example , Very detailed ！！！

• The principle of generics, the principle of reflection, etc Java Virtual machine principle, thread pool principle, etc
• Annotation principle, annotation principle, serialization
• Activity Knowledge system （Activity The life cycle of Activity Task stack, etc Activity The startup mode of View Source code , Fragment Kernel related service Principle, etc ）
• Code framework structure optimization （ Data structure, sorting algorithm, design pattern ）
• APP performance optimization （ User experience optimization, adaptation, code tuning ）
• Hot repair, hot upgrade, etc Hook Technology, technology IOC Architecture design
• NDK（c Programming C++ , JNI , LINUX）
• How to improve development efficiency ？
• MVC , MVP , MVVM
• jetpack Component library
• Wechat applet
• Hybrid
• Flutter
• Kotlin

With review ideas , In combination with the actual combat experience in the past , There are many online experiences , But norms 、 Concise analysis of interview questions is rare , Here I'll share with you , Major factories are 2022 Analysis collection of interview questions in , Including Ali 、 tencent 、 Huawei 、 JD.COM 、 Meituan 、 byte 、 Analysis of the real interview questions of Baidu and other super first-line factories , Help you to have a deeper understanding of the idea of large factory interview , Better prepare for the interview of large factories ! You can scan the code at the end of the text and get it for free .

A collection of real interview questions by Ali

Java Basic questions ：

• An object creation process

• Explain it. java Memory model

• List various List,Set,Map,Queue And tell us their similarities and differences

• The condition of deadlock
  

Android Interview questions ：

• Android Event distribution mechanism , Please describe the whole process in detail

• Android view Drawing mechanism and loading process , Please describe the whole process in detail

• Handler、Loop Message queuing model , The function of each part

• What are the categories of animation , What are the characteristics of each

• TCP Why three handshakes are not two , Why two handshakes are not safe

• Socket and Http The difference between

• OkHttp What design patterns are used in the framework

• Retrofit Workflow ？

Tencent interview questions collection

Java part ：

• Java What are the states of a thread , What locks are there , The difference between locks
• Difference between process and thread
• The difference between static agent and dynamic agent , What scenarios to use
• Tell me about your right Java Reflexive understanding
• HashMap and HashTable as well as CurrentHashMap The difference between
  

Framework relevant （ Must ask ）：

• Android What is the system startup process
• ActivityThread working principle
• AMS How to manage Activity Of
• WMS How to manage Window Of
• Android uses an automatic garbage collection mechanism , Please talk about the principle of Android memory management
  

Collection of real questions of meituan interview

• Activity The way of communication between
• Two Activity Which methods will be executed when jumping between
• Activity Comparison of four startup modes of
• about View The state of , How to achieve automatic recovery
• How to optimize customization View, What's your general direction of optimization
• Low version SDK How to implement higher version api
• Customize View How to consider model adaptation
• On Multithreading in Android The use of

• In event distribution onTouch and onTouchEvent What's the difference? , How to use
• View and ViewGroup There are callback methods related to event distribution
• What is the solution to avoid OOM
• How to prevent thread memory leakage

Collection of real questions of meituan interview

• Activity The way of communication between
• Two Activity Which methods will be executed when jumping between
• Activity Comparison of four startup modes of
• about View The state of , How to achieve automatic recovery
• How to optimize customization View, What's your general direction of optimization
• Low version SDK How to implement higher version api
• Customize View How to consider model adaptation
• On Multithreading in Android The use of

• In event distribution onTouch and onTouchEvent What's the difference? , How to use
• View and ViewGroup There are callback methods related to event distribution
• What is the solution to avoid OOM
• How to prevent thread memory leakage
  

Interview questions

• Under the said Linux Difference between process and thread
• How does performance stability work
• Kotlin characteristic , and Java What's different from
• What is a journey
• What are the advantages of implementing singleton mode through static inner classes
• What kinds of work queues do thread pools have
• If something unusual happens , How to stop loss quickly
• App Start speed optimization
• Is there a good way to solve the slow start caused by version iteration

Because of too much content , The screenshot shows the directory and some contents , Click the small card below to get the complete document for free ！