Java sorts strings containing letters, Chinese characters, characters and numbers

Note: by default, the priority of Chinese characters is 5 (the first letter of Chinese Pinyin for comparison of Chinese characters), the priority of characters is 4 (except for. Characters), the priority of uppercase letters is 3, the priority of lowercase letters is 2, and the priority of numbers is 1. Direct insertion sortin ...

Posted by Andy82 on Sat, 25 Jan 2020 17:32:54 +0100

Audio and Video: Draw pictures in three ways

Because video rendering is essentially about displaying pictures one by one, the first step in learning is to learn to display pictures. This time we use three different ways to display a picture. ImageView ImageView is the easiest and most common way to use it. context?.let { image.setImageBi ...

Posted by raister on Sat, 25 Jan 2020 04:16:49 +0100

Java serialization 77 Integer common methods, Integer, int, String mutual conversion, automatic packing, automatic unpacking

1, On the common methods in Integer   package com.bjpowernode.java_learning; ​ public class D77_1_ { public static void main(String[] args) { Integer i1 = new Integer(10); //take Integer Type to int type int i2 = i1.intValue(); System.out.println(i2); //Important: static int parseInt(String s)String to number ...

Posted by suvarthi on Wed, 22 Jan 2020 16:23:35 +0100

Using NatureDQN to play and make bricks

Using NatureDQN to play and make bricks target Try the first edition The foundation of building bricks Preprocessing Image preprocessing State preprocessing Network design Second version attempt Third version attempt Code directory: target Playing brick is a relatively complex game in gym ga ...

Posted by glitch003 on Tue, 21 Jan 2020 12:01:01 +0100

[Code Page] Build your own golang framework step by step from scratch

In the previous article, we defined the project basic catalog structure.Now let's review my thoughts: Create entry file; Specify configuration, log directory; Specify the database, queue, cache component directory; Create a controller directory for data processing; Specify miscellaneous items such as public functions. Next, we'll fill in t ...

Posted by AaZmaN on Mon, 20 Jan 2020 19:23:08 +0100

STM32CubeMX creates F429HAL library project and migrates TencentOS tiny

1, Using STM32CubeMX to build a project 1. Open the software 2. Create project based on chip 3. Select the corresponding chip Here I use stm32f429igt6 4. Set GPIO 5. Set serial port 6. Set the clock to 180MHz Internal clock is selected here. If you need external clock, please custo ...

Posted by medaswho on Mon, 20 Jan 2020 13:28:12 +0100

Git introduction and daily commands

git introduction GitHub is a hosting platform for open-source and private software projects, because it only supports git as the only version library format for hosting, so it is named GitHub. GitHub was officially launched on April 10, 2008. In addition to Git code warehouse hosting and basic Web management interface, it also provides subscri ...

Posted by mosi on Sun, 19 Jan 2020 06:00:23 +0100

An example of using Websocket developed by Python

I learned how to implement web development in java. Today I want to try to implement it in python, so I found the code on the Internet 2.1. Effect 1 (a client connects to the service and sends a message) 2.2. Effect 2 (another client connects to the service and sends a message) 2.3. Effect 3 (the servic ...

Posted by starmikky on Fri, 17 Jan 2020 15:14:10 +0100

After the webpack is packed, it cannot be called. Instead, use uglifyjs to pack and compress

Background: The project is based on native js and does not use any scaffolding or framework, but it also needs to be packaged and compressed. Some global variables are declared in the js of the project for other js to call. At this time, if we use the web pack, based on the web Pack feature, we will nest a layer of large functions, which will t ...

Posted by jwmessiah on Fri, 17 Jan 2020 14:01:51 +0100

netty - start process

netty start process Start instance: public final class EchoServer { static final boolean SSL = System.getProperty("ssl") != null; static final int PORT = Integer.parseInt(System.getProperty("port", "8007")); public static void main(String[] args) throws Exception { // Configure ...

Posted by superdude on Fri, 17 Jan 2020 12:33:42 +0100