Programmer Think

- "hidden dangers are more dangerous than open fire, prevention is better than disaster relief, and the responsibility is heavier than Mount Tai" preface This paper introduces the security test process of sending SMS verification code interface in detail, including ideas, some test codes and test results. This test website ...

catalogue 1, Purchase and installation of server 2, Download of required software 2.1. Final shell download and installation 2.2,Node.js 2.3,MySQL 2.4,JDK 2.5,Tomcat 2.6,Nginx 2.7,Git 3, Node JS installation and configuration 4, Installation and configuration of Git and gitee 5, Tomcat installation and configuration 6, Installation ...

The preparatory work has been finished. Now we can officially enter the reading link. This article, like the title, mainly talks about the container, the core part of Spring. This word is not unfamiliar. Many people will come into contact with Spring's two core functions IOC and AOP when they come into contact with Spring. Here we read it from ...

What is logback logback inherits from log4j and is based on a logging system with ten years of industrial experience. It is faster and smaller than all other logging systems and contains many unique and useful features. The first step of genius requirement The logback classic module needs to add slf4j API in the classpath jar,logback-core.j ...

definition: The parent class derives a subclass, which inherits the parent class. The subclass can obtain the properties and methods of the parent class use: extends keyword, which declares that the subclass inherits from the parent classsuper keyword, used to refer to the parent object (the parent object will be created before the c ...

Interview questions 1. It is required to print A1B2C3... Z26 in thread order Solution 1 (LockSupport): The code is as follows: static Thread t1 = null, t2 = null; public static void main(String[] args) { t1 = new Thread(() -> { for (char a ='A'; a <= 'Z'; a++) { System.out.print(a); ...

Source code 9: DropDown Dropwon is mainly used to realize the function of drop-down selection public class Dropdown : Selectable, IPointerClickHandler, ISubmitHandler, ICancelHandler { ... protected internal class DropdownItem : MonoBehaviour, IPointerEnterHandler, ICancelHandler { //Text displayed by Item [SerializeFiel ...

The source code of this article is based on jdk1 8 . Thread state In the Thread class, the Thread status is realized through the threadStatus property and the State enumeration class: /* Java thread status for tools, * initialized to indicate thread 'not yet started' */ private volatile int threadStatus = 0; public enum State { /** ...

catalogue 1, Element offset offset series 1. offset overview 2. Common attributes 3. Difference between offset and style Case - coordinates of mouse in box Case - drag modal box Case - Jingdong magnifying glass 2, Element viewable area client series flexible source code analysis Execute function now pageshow event 3, Element scroll ...

1, Analysis purpose and data source Analysis purpose: Understand the sales situation of the e-commerce platform from three aspects: products, customers and time zone;Identify important business standards to isolate customers and group customers into different value clusters to run targeted marketing strategies, reduce operating costs and impr ...