Programming VIP

Let's start with the constructor of ArrayList. ArrayList can be initialized in three ways. The source code of the construction method is as follows: /** * Default initial capacity size */ private static final int DEFAULT_CAPACITY = ...

Improving the Packing Configuration of Web Pack With the basic configuration of webpack, it is not enough to support packages that can be used in production environments. We need to add some configuration. First of all, it's better to delete the last generated file before each package. Here you can use it. clean-webpack-plugin Plug-in implement ...

ZooKeeper's election process defaults to the FastLeaderElection class, which starts Messenger to send and receive election information when FastLeaderElection starts. After the election is completed, one Leader and several Follower are selected. First understand several concepts: Epoch: The voting cycle is used to distinguish each round, and ...

Write in front Thought analysis Find a lane so that for any given starting point and end point, the lane with the least stops can be found. If there are more than one stops, take the least number of transfer routes. Once DFS Maintaining two ...

Flink Notes-Delayed Data Processing Out Of Order&Late AllowedLateness&OutputTag On Output Tag Flink's window processing streaming data provides a WaterMark mechanism based on EventTime, but it can only solve the problem of data disorder ...

Part II Functions and Arrays 1. Functions Definition of function Ordinary function Function function name (expression 1...) {Code Block} js is an interpretative language. At the beginning of script tag code execution, ordinary functions are ...

Summary of sql statements Exercise 1: //Create a Category Table: create table category( cid int primary key auto_increment, cname varchar(10), cdesc varchar(31) ); insert into category values(null,'Mobile Digital','Electronic product'), (null,'Shoe ...

I/O Summary 1. File Reading 2. About scanf() and printf() 2-1 parameter: 2-2 return value: 3. Characters and strings: 3-1 characters: 3-2 Read in a line: 4. Stream Input and Output: Control Format 4-1 sprintf() and sscanf(): 4-2 stringstream: ...

Preface When you talk about hashMap, you really don't understand the simple things. You really feel that you need an article to explain it so that you are not afraid of being asked during an interview. **Introduction to HashMapHashMap InitializationHashMap Expansion MechanismHashMap data structureResolution of HashMap Hash ConflictHashMap Usage ...

background Timsort is a hybrid, stable and efficient sorting algorithm, which originates from merge sorting and insert sorting, and aims to deal with a variety of real data well. It was implemented by Tim Peters in 2002 in Python programming language. The algorithm finds the subsequences of sorted data and uses this knowledge to sort the rest o ...