back to future collection

In the previous blog, we introduced the design idea and implementation of the future design pattern, and today we'll talk about how to implement the original package using the JDK.The built-in future of the JDK is mainly used in the callable interface and the Futuretask class.Callable are similar to runnable interfaces, classes that implement callable interfaces, and classes that implement runnable, are tas

Callable, Future, and FutureTask In Java, besides the Runnable interface, there are also Callable interfaces.The difference between the two is that the latter can return values, which are generally used for time-consuming computing.The Runnable interface is used in many threads. Generally, it can be used as the thread execution body. Callable is generally used in combination with FutureTask. The source code of the Callable interface is as follows: /**

Reply content:Which is the mainstream platform for the future? Before it was windows, then the Web, then the phone, and then later? Objective C If it weren't for Apple, we wouldn't have noticed it. In the future, why must be in. NET PHP, JSP these three? Can't it be a new language? At that time everybody thought: Microsoft is so ox, follow it, learn. NET certainly is right, think this words to now also wron

The thread library uses the future paradigm to provide a way to asynchronously manipulate the return value of a thread, because the return value is not available at the start of the field, and is a prospective value, so it is called the futures.The future uses Packaged_task and promise two template classes to wrap asynchronous calls, using Unique_future and shared_future to get the result of an asynchronous

1.1 ReviewsThere are two ways of creating a thread: Extends Thread | | Inplements Runable, however, there is a flaw in both ways that the execution result cannot be obtained after the task is completed. If you want to get to the execution results, you have to share the variable or the method of thread communication to achieve the effect, the use of more cumbersome, in order to solve this problem, Java provides the callable future, through they can be

Jerry Cao, the author of this article, is a content decision-maker for Uxpin and an online content developer Uxpin This online wireframe/prototyping tool. If you want to learn how to design prototypes, familiarize yourself with the relevant tools, and complete the design process, you can download Uxpin's elaborate "ultimate Guide to Prototype Design" (English version). This article will introduce you to the development of wireframes and prototypes, to learn about their development in different h

Java concurrent Programming callable, Runnable, future, Futuretask　　Java has callable, Runnable, future, futuretask these thread-related classes or interfaces, below to understand their role and differences.I. Callable and runnable　　Similar to callable and runnable, classes that implement callable and runnable interfaces are tasks that can be run by other threads, and callable and runnable are mainly distin

We were lucky to have participated in the fifth play of the bigtalk organized by Baidu baijia in October 27, with the theme of "reshaping the future of Robots ". The three "Great gods" were well-known and influential in the circle. Wang Haifeng, vice president of Baidu technology, gave a speech titled "Let machines think like people", hodlipson, director of the Institute of creative robotics at Cornell University, forbes called him the "seven best rob

We were lucky to have participated in the fifth play of the big talk organized by Baidu baijia in October 27, with the theme "reshaping the future of Robots ". The three "Great gods" were well-known and influential in the circle. Wang Haifeng, vice president of Baidu technology, gave a speech titled "Let machines think like people", Hod Lipson, director of the Institute of creative robotics at Cornell University, forbes called him the "seven best robo

In the process of developing Android, we put time-consuming tasks into sub-threading and refreshing during the process of processing time-consuming tasks and UI interactions. Here are two questions I believe most developers will encounter:1. The data often needs to be read and updated, and it is time consuming to refresh the UI in steps.2. After switching the UI interface, how to stop the data that is being read in the child thread without flushing the old data to the new UI interface.Currently

2016_person re-identification Past, Present and future Liang Zheng, Yi Yang, and Alexander G. Hauptmann This is an article about person Re-i D Summary article. Reprint please attach original address: http://blog.csdn.net/zdh2010xyz/article/details/53741682 Abstract Re-id become more and more important. Early on, it was mainly about hand-crafted algorithms and small-scale evaluation articles. In recent years, large-scale datasets and deep learning syst

One day, I want to take the whole family to travel together. I picked up my cell phone and pressed a few keys and said, "Check out the tourist route of Lijiang." Suddenly a huge picture, appeared in front of the original look ordinary white wall. I use the finger point Lijiang Map of the attractions, beautiful landscape photos and videos are also displayed next to it, as if we have been immersive. Referring to Twitter's reviews, I chose a route and a hotel for my stay. Then I pressed two keys an

foundation of security analysis is data. All data sources are from web logs. From a business perspective, these are all business logs, but in my eyes, these data is a "honeypot ".There are good and bad people in the logs. Our goal is to find out the bad guys.With so many big data-based technologies, the data types selected through architecture and technology selection are as follows:Data collection is implemented through flume, and data sub

We know that there is a concept of package in Java, and in. NET there is a more convenient concept of DLL assembly references, which can be easily referenced in our own class by a collection of objects that are grouped together in a packaged form, but because there is no corresponding concept in PHP, So when it comes to referencing objects defined in other files, the two most common functions PHP programmers use are require_once and include, which all

After learning computer engineering for several years, I still have some experience in finding professional paper (especially the electronic version. This is a summary for future reference. This article also applies to computer science. 1. Search engines. This is actually the simplest and most effective method. Recommended:Google ScholarCiteseerDblp Google Scholar generally returns several results for each paper. You can click "group" to view th

file into a database table), ad hoc queries, and large data set analysis stored in a Hadoop compliant system. Hive provides full SQL query functionality--hiveql language, and while using this language to express a logic becomes inefficient and cumbersome, HIVEQL also allows traditional map/reduce programmers to use their own custom mapper and reducer.6. PigApache Pig is a platform for large data set analysis that includes a high-level language for data analysis applications and an infrastructur