[Dry] 2020 in the future, the most comprehensive test Summary - these giant Android "108" to ask interview questions you will need

[Dry] 2020 in the future, the most comprehensive test Summary - these giant Android "108" to ask interview questions you will need

As a programmer job soon, may now face a very different recent years, 2019, your employment opportunities and outlets will appear? In this new environment, work should select manufacturers or small company? Veterans several years of work experience, but also how to maintain and enhance their competitive edge, turn from passive to active?

On the current environment point of view, the difficulty of quit success is much higher than in previous years. A clear feeling: This year's interview, whether face or two faces, are the test of technical knowledge Android programmers.

Recently collected some basic issues, and Ali, Tencent 2019 featured face questions, and finally also the technical point carded a large and "Android engineer" interview xmind (in fact, than expected to spend a lot of time ), contains the knowledge context + branch detail, because of space limitations, in the end the form of pictures to show you a rough.

So how can first-line interview by Internet companies? I believe this is a lot of people's doubts, I hope after reading this article will give you some inspiration.

The screenshot below is my first record of interview questions, interview the day finished a few questions written home at night.

[Dry] 2020 in the future, the most comprehensive test Summary - these giant Android "108" to ask interview questions you will need

Now a few questions from above, developed into 6K star project, the following question was finishing my latest line company for an interview recorded last, I have many years of experience in the interview to others.

Basic problems related to (Answer at end of the text):

1、接口的意义-百度
2、抽象类的意义-百度
3、内部类的作用-乐视
4、Java 虚拟机的特性-百度-乐视
5、哪些情况下的对象会被垃圾回收机制处理掉-美团-小米
6、进程和线程的区别-猎豹-美团
7、java中==和equals和hashCode的区别-乐视
8、HashMap的实现原理-美团
9、string-stringbuffer-stringbuilder区别-小米-乐视-百度
10、什么导致线程阻塞-58-美团
11、多线程同步机制-猎豹
12、ArrayMap对比HashMap
13、hashmap和hashtable的区别-乐视-小米-360
14、容器类之间的区别-乐视-美团
15、抽象类接口区别-360

Android 方面(问题答案在文末)

16、如何导入外部数据库?
17、本地广播和全局广播有什么差别?
18、intentService作用是什么,AIDL解决了什么问题-小米
19、Ubuntu编译安卓系统-百度
20、LaunchMode应用场景-百度-小米-乐视
21、Touch事件传递流程-小米
22、View绘制流程-百度
23、多线程-360
24、Handler,Thread和HandlerThread的差别-小米
25、线程同步-百度
26、什么情况导致内存泄漏-美团
27、ANR定位和修正
28、什么情况导致oom-乐视-美团
29、Service与Activity之间通信的几种方式
30、如何保证service在后台不被Kill
31、Requestlayout,onlayout,onDraw,DrawChild区别与联系-猎豹
32、Android动画框架实现原理
33、Android为每个应用程序分配的内存大小是多少-美团
34、优化自定义view百度-乐视-小米
36、volley-美团-乐视
37、Glide源码解析
38、Android设计模式
39、Android属性动画特性-乐视-小米
40、Activity Window View三者的差别,fragment的特点-360
41、invalidate和postInvalidate的区别及使用-百度
42、LinearLayout和RelativeLayout性能对比-百度
43、View刷新机制-百度-美团
44、架构设计-搜狐

[Dry] 2020 in the future, the most comprehensive test Summary - these giant Android "108" to ask interview questions you will need

腾讯面试题精选

45、2000万个整数,找出第五十大的数字?
46、从网络加载一个10M的图片,说下注意事项
47、自定义View注意事项
48、项目中常用的设计模式
49、JVM的理解

阿里面试题精选

50、进程间通信方式
51、什么是协程
52、内存泄露是怎么回事
53、程序计数器,引到了逻辑地址(虚地址)和物理地址及其映射关系
54、数组和链表的区别
55、二叉树的深度优先遍历和广度优先遍历的具体实现
56、堆的结构
57、bitmap对象的理解
58、什么是深拷贝和浅拷
59、对象锁和类锁是否会互相影响
60、looper架构
61、自定义控件原理
62、自定义控件原理
63、ActivityThread,Ams,Wms的工作原理
64、Java中final,finally,finalize的区别
65、一个文件中有100万个整数,由空格分开,在程序中判断用户输入的整数是否在此文件中。说出最优的方法
66、两个进程同时要求写或者读,能不能实现?如何防止进程的同步?
67、volatile 的意义?
68、烧一根不均匀的绳,从头烧到尾总共需要1个小时。现在有若干条材质相同的绳子,问如何用烧绳的方法来计时一个小时十五分钟呢?

由于篇幅原因这里只展示部分面试题,更多的面试题我已经整理成了一个PDF文档,可以加我 wx:X1524478394 免费获取。

“阿里 P7” 40W+年薪企业资深架构师成长学习路线图(详细完整的xmind文件见文末)

[Dry] 2020 in the future, the most comprehensive test Summary - these giant Android "108" to ask interview questions you will need

经验分享

我也算是一线公司都踩过点的码农了,Facebook也踩过一次,现在就说说我自己的一些感受。

在阿里的时候我作为面试官接触过几十个面试者,能左右我是不是通过这个人的,主要因素还是这个人对技术的热爱程度。因为有这种极客精神,做任何技术上的事情都是时间上的问题,所以面试过程中要尽可能表现出对技术的热爱

那除了这种因素外,我们怎么做才能更大概率的进入一线公司呢?

还有一个比较重要的因素就是知识的深度。我认为深度优于广度,广度通过看各种文章都能了解,但一旦碰到实际问题,这时候往往靠的是自己的知识深度。比如,Java程序猿都知道Java是跨平台的,因为会编译成和平台无关的字节码,但是有多少人会知道是怎么编译的?如果不知道虚拟机运行原理,就不可能做出手淘的Atlas容器框架。再比如,很多人知道四大组件职责都是什么,还会些性能优化,但是如果不知道Framework层系统服务原理,就做不出插件化框架。

因为一线公司业务的复杂度也决定了业务的深度,如果没有较好的深度探究能力,是很难胜任的,所以知识的深度也很重要。

极客精神加上某一领域知识的深度能力,就可以达到一线公司标准了。面试中非理性因素也有较大比重,但是这种东西是我们没办法掌控的,如果因为这种因素失败了,也没必要气馁。我认为能力是和回报成正比的,就算此刻没发生,下一刻也会出现,只要掌握了我们该掌握的能力,总有一天会进入我们理想的公司。

文末

有些东西你不仅要懂,而且要能够很好地表达出来,能够让面试官认可你的理解,例如Handler机制,这个是面试必问之题。有些晦涩的点,或许它只活在面试当中,实际工作当中你压根不会用到它,但是你要知道它是什么东西。

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①Android development of core knowledge notes

[Dry] 2020 in the future, the most comprehensive test Summary - these giant Android "108" to ask interview questions you will need

② interview Boutique Collection Summary

[Dry] 2020 in the future, the most comprehensive test Summary - these giant Android "108" to ask interview questions you will need

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[Dry] 2020 in the future, the most comprehensive test Summary - these giant Android "108" to ask interview questions you will need

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Origin blog.51cto.com/14332859/2457508