Fundamentals of program design of school online blast plan chapter 1-4

Chapter I preliminary programming a master hand 's first small display 1. Output a line of "Hello World" on the screen and wrap it. #include <iostream> using namespace std; int main() { cout << "Hello World" << endl; return 0; } 2. Calculation questions - 1 and 1.0 Calculation 1 + 1 / (1 + 1 / (1 + 1 ...

Posted on Mon, 29 Nov 2021 06:40:26 -0500 by MerlinJR

Finally understand why Spring Boot is so popular with HikariCP. This picture is too thorough

preface Now many companies are using HikariCP. HikariCP has also become the default connection pool of SpringBoot. With SpringBoot and microservices, HikariCP will be widely popularized. Next, Chen will take you to analyze why HikariCP can be invited by Spring Boot from the perspective of source code. The article directory is as follows: ...

Posted on Mon, 29 Nov 2021 05:24:00 -0500 by ShanesProjects

What is IOC? Teach you to roll an IOC container

IoC What is IoC? IoC is the abbreviation of inversion of control. Note that it is a technical idea. It describes the creation and management of objects. Traditional development methods: for example, if class a depends on class B, it often creates a new object of class B in class A.IoC development method: we don't need to go to the new object ...

Posted on Sun, 28 Nov 2021 20:34:09 -0500 by ztealmax

C#Simple Game Client Programming (VS)

Preface Write a web visitor client, the game server's intranet IP address is 10.1.230.74, port is 3900, using TCP connection. 1) After successful connection, messages from the server can be displayed in the listbox continuously; 2) The data the client wants to send to the server, enter through textbox or click button; 3) Ability to play ...

Posted on Sat, 27 Nov 2021 13:11:35 -0500 by barrylee

Detailed explanation of heap sorting algorithm in C language

Before learning heap sorting, you first need to understand the meaning of heap: in a sequence containing n elements, if the elements in the sequence meet one of the following relationships, the sequence can be called heap. ki   ≤ k2i   And ki   ≤ k2i+1 (within the range of n records, the value of the ith keyword is less th ...

Posted on Thu, 25 Nov 2021 22:28:20 -0500 by Patrick3002

1014 Sherlock Holmes' appointment (20 points)

Sherlock Holmes received a strange note: let's date! 3485djDkxh4hhGE 2984akDfkkkkggEdsb s&hgsfdk d&Hyscvnm The detective soon understood that the strange random code on the note was actually the date time at 14:04 on Thursday, because the first pair of the same uppercase English letters (case sensitive) in the first two strings wa ...

Posted on Thu, 25 Nov 2021 21:12:47 -0500 by il_cenobita

"Ordinary people VS programmers" computers can also be shut down in this way. God's operation suggests reading

Introduction ​​ Hello! Hello, I'm Mengya. Whether home computers or company computers, timing on-off is a very practical function, but it is generally not paid much attention. Timed shutdown can not only prolong power consumption The service life of the brain can save too much electricity ~ ha ha ha ​​ Hi ~ no, I take a day off on Sun ...

Posted on Thu, 25 Nov 2021 19:01:18 -0500 by DeadEvil

Introduction and internal principles of Python's widely used concurrent processing Library futures

When using Python to process tasks, due to the limited processing capacity of a single thread, it is necessary to parallelize the tasks and distribute them to multiple threads or processes for execution. concurrent.futures is such a library, which allows users to easily parallelize tasks. The name is a little long. I directly use the word conc ...

Posted on Thu, 25 Nov 2021 14:32:45 -0500 by AlGale

Steal the day and cheat your JVM with JavaAgent

Everyone familiar with Spring should know aop better. Aspect oriented programming allows us to weave the logic we want to execute before and after the target method. Today's Java Agent technology is similar to aop in thought. It can be translated as Java Agent and Java probe technology. Java Agent appeared after JDK1.5. It allows programmers t ...

Posted on Sun, 21 Nov 2021 20:08:06 -0500 by blackandwhite

LRU algorithm design

Raising questions Description: The LRU (least recently used) cache structure is designed. The size of the structure is determined during construction, assuming that the size is k, and has the following two functions set(key, value): insert a record (key, value) into the structure get(key): returns the value corresponding to the key Basic ...

Posted on Sun, 21 Nov 2021 17:01:23 -0500 by Dujo