At the beginning

Android development, if start without any development experience, do not worry, do not think in a short time to learn a good language, because you do not have any learning experience before, in this process need to have patience to learn the basic knowledge of JAVA, and then began to embark on the journey of Android development.

If you have JAVA development experience before, you can quickly get started on Android. However, you can’t ignore some basic knowledge of Android. Only by mastering the basic knowledge can you make great progress in the later stage.

Because from the perspective of the interview, the current BAT and TMD and other first-line Internet enterprises more or less will have a few algorithm questions, and for the graduating students, the algorithm is higher requirements! Here you can share my collection of data structure algorithm with the answer.

Data structure interview topics

2. What do you know about concurrent sets? (handwriting algorithm) how to judge a chain has a ring/two chains cross 5, container class introduction and the difference between 6, List,Set,Map 7, HashMap implementation principle 7.1 How does a HashMap put data? 7.2 How does a HashMap get data? 7.3 How does a HashMap handle two objects that have the same Hashcode, that is, a collision? 7.4 How do I obtain a value object if the hashcodes of two keys are the same? Implementation principle of ConcurrentHashMap 9 Comparison between ArrayMap and hashMap 10 Implementation principle of HashTable 11 Difference between hashMap and HashTable How to determine whether a HashSet element is identical to a HashMap element? ArrayList and LinkedList (ArrayList, LinkedList, ArrayList

The answer is a little too long to get all the way to the text; The following will be shared as a direct document

conclusion

After the last small make up want to say: no matter choose what direction, now the important thing is to learn Android technology well, after all, in fact for programmers to learn the knowledge of content, technology there are too many, not eliminated by environment is constantly improve themselves, has always been our to adapt to the environment, rather than the environment to adapt to us!

Attached here are dozens of Android interview questions compiled by Tencent, Bytedance, JINGdong, Xiaomi, Toutiao, Ali, Meituan and other companies in the past 19 years. Organize the technical points into videos and PDFS (which actually took a lot more effort than expected), complete with context of knowledge + lots of detail.

Due to the limited space, here in the form of pictures to show you a small part.

Details can be found on GitHub.

Android Architecture video +BAT Interview topics PDF+ Study notes

There is a lot of information about Learning Android online, but if the knowledge learned is not systematic, and problems are only tasted, no further research, then it is difficult to achieve real technology improvement. I hope this systematic technical system has a direction reference for everyone.

The road to technological advancement is long, let’s share it