C++ – unordered series of associative containers and hashes

1. unordered series associative containers 2. Hash principle 3. Unordered_map simulation implementation 1. unordered series associative containers unordered_map is an associative container that stores key-value pairs. Their types can be different. Unlike map, unordered_map does not perform a specific sorting of key values. Its bottom layer uses hash, and the hash values are the same. […]

Java socket implements proxy Android App

The implementation logic is to forward requests and responses. core code //Start proxy server private void startProxyServer() { new Thread(new ProxyServer()).start(); } // proxy server static class ProxyServer implements Runnable { @Override public void run() { try { // Listen to the specified port int port = 8098; //Generally use ports between 49152 and 65535 […]

The simplest example of tio-websocket-spring-boot-starter, you will definitely gain something after reading it

Foreword In the past month, I have been looking for simple and easy-to-use modules that can quickly develop real-time communication, so I went to look for related content. Before that, I used Spring’s native webSocket, which has a disadvantage. The setting group is not easy to set up, and the configuration is a little more […]

WebRTC + WebSocket implements video calls

WebRTC WebRTC (Web Real-Time Communication). Real-Time Communication, real-time communication. WebRTC enables selective sharing of audio and video streams between web applications and sites. Complete peer-to-peer communication without installing other applications and plug-ins. The technology behind WebRTC is implemented as an open web standard and available as a regular JavaScript API in all major browsers. For […]

How to do network programming and socket operations?

Network programming is one of the important areas of computer programming that enables programs to transmit and communicate data over a network. C language is a powerful programming language that can also be used for network programming. Network programming usually involves socket operations, which are an abstract interface for network communication. This article will discuss […]

JavaEE-Network Programming Sockets (UDP/TCP)

Write a simple UDP client server process below Idea: For the server side: read the request and parse it –> make a response based on the parsed request (here is an echo,) –> write the response back to the client For the client: Read user input from the console –> Read user input from the […]

Use sockets to simulate information communication

1. Server import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.net.ServerSocket; import java.net.Socket; import java.util.Scanner; public class Server { private static Socket socket; public static void main(String[] args) { try { System.out.println(“Socket server starts running…”); ServerSocket serverSocket = new ServerSocket(9999); while (true) { socket = serverSocket.accept(); new Thread(new Server_send(socket)).start(); new Thread(new Server_listen(socket)).start(); } } catch (Exception e) { […]

[C++ simulation implementation] Simulation implementation of hash and unorder_set and unorder_map associative containers

[C++ simulation implementation] Simulation implementation of hash and unorder_set and unorder_map associative containers Directory [C++ simulation implementation] Simulation implementation of hash and unorder_set and unorder_map associative containers Hash concept Closed hashing method of hashing (open addressing method) Open hashing method of hashing (hash bucket) Open hash encapsulation of unordered series containers for hashes, plus iterators […]