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Interviewer : How to achieve componentization, what is the difference between componentization and plug-in, and how to choose
Psychological analysis : The interviewer understands from the architectural level whether the candidate has used modular componentization and plug-inization, and whether it has been used in past experience After applying these techniques to the project, this question belongs to a serial gun. Candidates
should be extra careful ** Candidates: ** The technical selection should be defined from the needs of App development, and the advantages and differences of modularization and componentization should be discussed separately.
First, the previous interview information catalog
ByteDance+JD+360+NetEase+Tencent stepped on the pit
The first one: byte beating
One side: Knowing that the pre-order and middle-order traversal columns of each node of the binary tree BT are A, B, C, D, E, F and C, B, A, E, D, F, try to draw the binary tree.
**Two-sided: ** It is known that the node sequence of a tree from root to leaf node is input by level and the degree of each node (in each layer, since
Enter from left to right), try to write an algorithm for constructing the child-sibling list of this tree.
**Three-sided master surface: **It is known that the pre-order and middle-order sequences of a binary tree are stored in two one-dimensional arrays respectively. Try to write an algorithm
Establish the binary linked list of the binary tree.
**Four-sided intersection: **Try to write a recursive algorithm to output all the atomic items and their levels in the generalized table.
The second one: Jingdong
One side: the underlying implementation of HashMap
On the second side: Why do you choose to use the red-black tree when the length of the linked list is greater than the threshold 8?
Three sides: Could you explain the difference between HashMap and Hashtable?
Third: 360
One side: the difference between thread and process?
The second side: two trillion-level URL files A and B, how to find the difference set C between A and B, (Bit mapping -> hash grouping -> multi-file read and write efficiency -> disk addressing and application-level search Site optimization)
Three sides: 5 coins, 2 positives and 3 negatives. How to divide them into two piles and then flip the coins in the two piles to make the number of coins facing up and the coins facing up in the two piles the same;
Four sides: how to find the smallest one hundred number from one million numbers, considering the time complexity and space complexity of the algorithm
Fourth: NetEase
One side: 1. What do you know about concurrent collections? 2. The realization principle of HashMap
The second side: enumerate the collection of java and the inheritance relationship between the collections
Three sides: introduction to container classes and the differences between them
Four sides: Comparison of ArrayMap and HashMap
Fifth: Tencent
One side: HashTable realization principle
Two sides: how to expand hashMap
Three aspects: 1. Please list several commonly used design patterns in JDK? 2. What is a design pattern? Are you in your code inside used any where design patterns?
Four sides: Give examples to illustrate when you would prefer to use abstract classes instead of interfaces?
At last
That’s it for today’s sharing of interviews. It’s the same sentence. There are some things you must not only understand, but also express them well, so that the interviewer can recognize your understanding, such as the Handler mechanism. This is a question that must be asked in the interview. . There are some obscure points, maybe it only lives in the interview, you will not use it at all in actual work, but you have to know what it is.
Finally, the editor here shares a collection of dozens of interview questions from Tencent, Toutiao, Ali, Meituan and other companies related to the above-mentioned technical system diagram. The technical points are organized into videos and PDFs (actually better than expected). I spent a lot of energy), including knowledge + many details . Due to limited space, I will show you a part in the form of pictures.
There are also advanced architecture technology advanced brain maps, Android development interview special materials , advanced advanced architecture materials to help you learn to improve the level, and save everyone's time to search for information on the Internet to learn, and you can also share with friends around you to learn together.
Android learning PDF+architecture video+interview document+source notes collection
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