Programmer Group

java day 31: thread pool, design mode 1. Overview and use of thread pool A: Thread pool overview Starting a new thread is expensive because it involves interacting with the operating system. The use of thread pool can improve performance, especially when a large number of short-lived threads are t ...

I'm the interviewer of Microsoft YaHei: it's 85 years old Me: Well, 35 Interviewer: that should be very experienced. Let's talk about spring Me: OK, I've used this for more than 10 years. You can ask me whatever you like Interviewer: have you ever used events in Spring? Me: Yes Interviewer: can you exp ...

This chapter is about parallel computing, accounting for more than 60 pages. After reading it, we have to straighten out and digest this big lump of things. 1. Using Monte Carlo simulation to estimate pi. The logic is simple: put the needle in the unit square of the coordinate system, calculate the proportion of the needle falling in the 1 / 4 ...

Before the flow chart was drawn, tomcat was used to start the flow modeler, but in this way, the data in your system cannot be queried when assigning task users / user groups. So now we need to integrate the flowable modeler into the project. I searched a lot of articles before, but I didn't feel very clear. Maybe it was because I just got ...

This article is from https://blog.csdn.net/UbuntuTouch/article/details/99546568 , with amendments and deletions. In the previous article, we have described how to use the REST interface to create index es, documents, and actions in ES.In today's article, we'll show you how to use ES to search for our data.ES is a near real-time search.Let's c ...

I believe that we have more or less come into contact with Java's agent mode on the Internet and in our daily study and work. We often hear some terms about static agent and dynamic agent. But do we really know that? At least when I interviewed, I found that many people were not very clear. First of all, agents are easy to understand, that is, ...

Today, I'm going to bring you the actual battle of template project. Let's have a look at the renderings explain: Click the picture to jump to the corresponding details page Data: movies = [    {        'id': '34532',        'title': u'Fat action team',        'thumbnail': u'https://img1.doubanio.com/view/photo/s_ratio_poster/public/p ...

@Official documents 1. Install iview2.0 cnpm install view-design --save 2. Introduce the ViewUI. Part of the note is @Last article For example, in this article, the version upgrade must be commented out, but uninstall does not // import iView from 'iview'; // import 'iview/dist/styles/iview.css'; import ViewUI from 'view-design'; im ...

Overall## Series entrance: Junit4 architecture design series (1): Request, ClassRequest and runner builder In the previous article, we have basically sorted out the Flow of Junit4 execution Case in general: Request -> ClassRequest.getRunner() -> AllDefaultPossibilitiesBuilder.safeRunnerForClass() -> runner.run() And introduced the ...

Source code: GitHub point here || GitEE point here 1, The concept of idempotent 1. An introduction to idempotent The characteristic of an idempotent operation in programming is that the influence of any multiple execution is the same as that of one execution. That is to say, one or more requests for a resource have the same effect. 2. HTTP req ...