Ali interview
Self introduction
First of all, you must introduce your own project experience and personal strengths, because the interviewer mainly examines your expression skills and language simplification skills.
In fact, you may need to pay attention to a few points in the preparation of your resume;
1. The title is directly filled in according to the format of name-years of work experience-application position. For example, Huang Ming-four years of work experience-senior engineer in Android development. Because you need to know that HR screening resumes is very fast, you have to let him see the information he wants to see the first time. HR is most concerned about working years and positions at the beginning. It will be much better if you write it in the largest font directly in the title bar than many people have introduced the half-day project.
2. Write personal information first. In fact, there is no need to write a lot of things in the personal information column. The most important ones are the name, contact information, and gender. If the school is a prestigious school, write it here. If the undergraduate major is a computer major, you can write it here. Write at the end, because the first thing is always the first thing you see, and it is also your most competitive and showy capital.
text
The JVM language has to put its own status into consideration, considering both its own ability and historical progress.
Java is a pro-son and the "indigenous people" of the JVM, leading the development direction of the JVM. The tree has deep roots and luxuriant branches. "This honesty cannot compete with each other."
Compared with other JVM languages, Kotlin is able to put itself in a more upright position. It does not have the ambition of "the princes will have a kindness" and replace it with Java. Instead, it always insists on the strong compatibility with Java. Use the Java API extensively, wrap the bloated Java code into short sentences, silently doing the work of the "paper maker". So far, Kotlin is quite capable of this role, type inference, expansion, null safety, higher-order functions , which is not practical and powerful syntax enhancement?
In my opinion, the biggest change in Kotlin for Java developers is not to reduce the time wasted on writing code, but a series of changes in thinking:
- Rather than let the developer manually control the loop, it is better to encapsulate the loop inside the class library . The three-stage for loop and while loop of the C-like language are simply the culprits of bugs and complex code;
- Object-oriented, but can't be tied up by classes and objects, liberating functions!
- Every line of code must be used on the cutting edge, to minimize template code and redundant declarations;
- The programming language should design the "default configuration" and guide developers to use the "default configuration" , such as the default class is not inheritable, the access control symbol defaults to public, the collection defaults to read-only, the type defaults to not null, etc.
- ** Immutable objects are better than mutable objects, ** use more val and less var, more read-only collections less mutable collections, more non-null types and less nullable types;
- **Classes should "return to their heart" and only undertake the functions of "abstract objects". **Kotlin encourages the use of extensions, less stuffing APIs and implementations in classes, and try to use "class basic framework + external extension function" Pattern.
These things are implicitly communicated to developers in the process of learning Kotlin and writing Kotlin, and can guide traditional and conservative Java developers to embrace modern programming languages.
Kotlin is not a science, but a set of tools . Unlike Scala, it is not as heavy as a book, and all features are born for practicality and simplicity;
Kotlin is not a revolutionist, but a reformer . It is not Go. It has no ambition to take the world and replace it. It only has a solid goal of "making Java easier to use".
Kotlin is not perfect, but it is constantly improving . Unlike Java, which is controlled by the Oracle family, it does not allow any uncontrolled features to appear. The birth and development of Kotlin cannot be separated from the promotion of the community. More and more new features are being developed. Urged to join in;
Kotlin will not cover everything, but will make up for the shortcomings of Java . Kotlin will not become C++.
to sum up
Finally, in order to help you deeply understand the principles of Android-related knowledge points and interview-related knowledge, here are the 14 sets of real interview questions that I have collected and compiled by Tencent, ByteDance, Ali, Baidu and other 2020 interview questions . I have organized the technical points into Video and PDF (actually took a lot more effort than expected), including knowledge + many details.
There are a lot of materials for learning Android on the Internet, but if the knowledge learned is not structured, and when you encounter problems, you just taste it and do not research in depth, then it is difficult to achieve real technological improvement. I hope that this systematic technical system will provide you with a direction reference.
A direction reference.
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