Completable future in Java 8 is so easy to use! Share all 20 examples

For asynchronous programming in Java, you don't have to use rxjava. The completable future in Java's own library can cope with most scenarios. This article introduces the CompletionStage API of Java 8 and the implementation of its standard library, completable future. The API demonstrates its behavior through examples, and each example demon ...

Posted by Robert Elsdon on Tue, 29 Mar 2022 23:28:14 +0300

Sprint spring move - selected pen interview 66 questions day22 (end)

day22 topic: 151. Reverse the words in the string,46. Full arrangement,2. Add two numbers Today's knowledge points: string, recursion and linked list. The difficulty is medium, medium and medium Learning plan link: Sprint spring move - selected pen interview 66 questions pass Yesterday's topic link: Sprint spring move - selected pen intervie ...

Posted by wefollow on Tue, 29 Mar 2022 13:55:22 +0300

Interviewer: how to optimize JVM (with real case)

preface Interviewer: have you ever done JVM tuning at work? What JVM tuning have you done? I have a project with a QPS of less than 10. Last time I was asked about cache penetration avalanche, this time I was asked about JVM tuning. It was really difficult for me. But don't panic. I've got a few full marks for you. You can choose the right ...

Posted by shruti on Mon, 28 Mar 2022 03:18:25 +0300

Glide4.11 source code analysis

Glide The process of with (activity) method obtains the RequestManager object and combs out the process of binding the RequestManager and Fragment life cycle. In this article, let's take a look at the load ing process of RequestManager. RequestBuilder<Drawable> builder = requestManager.load("http://www.xxx.com/pic") First, let's see what ...

Posted by hmvrulz on Sat, 26 Mar 2022 14:05:21 +0300

Knowledge reserve of C + + system R & D Engineer

Object oriented and generic programming (2) Algorithm Various commonly used algorithms, such as sort, find, copy and for_each et al Basic concepts Algorithms: limited steps to solve logical or mathematical problemsClassification of algorithms Qualitative change algorithm: refers to the content of elements in the interval that will be cha ...

Posted by foyer on Sat, 26 Mar 2022 13:30:00 +0300

Brush questions every day -- leetcode sword finger offer 3, 4, 5, 29, 50

Start preparing to find a job, target java development, learn java from 0, and update the experience of brushing questions every day. Today, there are several basic arrays and matrices. Duplicate number in sword finger offer3 array All numbers in an array of length n are in the range of 0 to n-1. Some numbers in the array are repeated, but I ...

Posted by SFDonovan on Sat, 26 Mar 2022 02:38:15 +0300