It can be said that mastering the knowledge on this pdf, the basic knowledge of interview questions is nowhere to be determined. With this pdf, I won offers from Internet companies such as Baidu/JD/Huawei/Yianxin.
The screenshot below is from a pdf version of a friend’s interview. I sorted out all the answers to the knowledge points. It took him at least 1 month. In the last part of this article, I will share this pdf with everyone. If you find it useful, please like it and follow it. Take a walk, thank you! ! ! There are answers to his knowledge points in the face sutra, as shown in the example below, very detailed! ! !
1. Data structure and algorithm
If you are developing in java, use java code to achieve
Book reference:
(0) Introduction to "Graphic Algorithm"
(1) "Sword Finger Offer" Sword Finger Offer_Programming Questions_牛客网
(2) "Programmer Code Interview Guide IT Famous Enterprise Algorithm and Data Structure Problem Optimal Solution" refer to Zuo Shen video
（3）leetcode LeetCode - The World’s Leading Online Programming Learning Platform
(4) Data structure (Yan Weimin)/Dahua data structure//If you find the textbook boring, you can watch the Dahua series
Knowledge points to be mastered:
Various operations (performance, scenarios) of arrays, linked lists, binary trees, queues, and stacks
Binary search and various variants of binary search (cycle ordered arrays to find the maximum and minimum values to find n, ordered arrays to find the leftmost subscript and rightmost subscript)
Various sorting algorithms and complexity analysis (fast sorting, merging, heap, bubbling, direct selection, insertion sort)
Various algorithmic questions (handwritten)
Understand and can analyze time and space complexity.
Dynamic programming (written back and forth...), greedy.
Red-black tree, AVL tree, Hash tree, Tire tree, B-tree, B+ tree (except for red-black tree, other ones will be inserted and deleted, if red-black tree is better, it is also a bright spot).
Graph algorithm (Kruskal algorithm, Prin's algorithm, Diklas algorithm)
Recursive and non-recursive realization of the pre-order, post-order, middle-order traversal of the tree, level traversal, depth first traversal, breadth first traversal
2. Computer Network
Reference books: "Illustrated http", "Illustrated TCP/IP", "TCP/IP Detailed Explanation Volume 1", "Computer Network (Xie Xiren)"
Knowledge points:
3. Database articles
Reference books: "High-performance MySQL" "MySQL Technology Insider: InnoDB Storage Engine (2nd Edition)"
4. Operating System
Reference books:
Knowledge points: "Essence of Operating System and Design Principles (Original Book 6th Edition)"
LRU will write a code whose time complexity of LRU set and get is o(1)
7.Linux Command
Reference book: "Linux Bird Brother's Private Kitchen"
6. Secure encryption
7. The main event in java
Basic articles:
Recommended book: "Java Programmer Interview Written Test Collection-He Hao" is a good book for assault on java interview! ! !
"JavaSE8 for busy people" "In-depth understanding of the Java virtual machine: JVM advanced features and best practices"
"JAVA Concurrent Programming Practice", "Java Multithreaded Programming Core Technology", "Java Core Technology Volume 1"
1. Basic articles:
2. Collection articles:
3. Lock
4. Multithreading
Take a look at "Java Multithreaded Programming Core Technology", there is no problem
5. Concurrent in jdk is commonly known as juc package
We must understand the underlying principles! ! !
We must understand the underlying principles! ! !
We must understand the underlying principles! ! !
6.java virtual machine
Mainly see "In-depth understanding of the java virtual machine"
7. Design patterns
Reference book: "Big Talk Design Pattern"
Know the meaning of each design pattern, you can write a singleton pattern, handwriting adapter pattern, factory pattern, observer pattern, decorator pattern
Knowledge points:
8. Framework knowledge
Due to space reasons, I will not show all of them here. I have compiled these questions into pdf files and shared them for free to those in need. At the same time, it took a lot of time to organize them.
Reader benefits
Friends who read this can also receive a collection of Java core knowledge system documents and more Jav advanced knowledge notes and video materials for free.
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