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function - Purpose of a constructor in Java?

What is the purpose of a constructor? I've been learning Java in school and it seems to me like a ... we've done thus far has been extremely rudimentary. Question&Answers:os...

answered Apr 12 in Technique[技术] by scientecheasy (100 points)

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AtomicLong中的incrementAndGet方法线程安全的么

public final long incrementAndGet() { return unsafe.getAndAddLong(this, valueOffset, 1L) + 1L; } AtomicLong源码中的incrementAndGet方,unsafe.getAndAddLong( ... ，请大佬讲解这个是看java并发编程之美遇到的问题...

commented Mar 29 in Technique[技术] by Maeve785 (100 points)

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sql - 在关系数据库中存储分层数据有哪些选择？ [关闭](What are the options for storing hierarchical data in a relational database? [closed])

Good Overviews (良好的概述) Generally speaking, you're making a decision between fast read times (for example, nested set) or ... (甲骨文) Use CONNECT BY to traverse Adjacency Lists (使用...

commented Dec 28, 2023 in Technique[技术] by Vasc (100 points)

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keyboard shortcuts - Is it possible to chain key binding commands in sublime text 2?

There are times in Sublime Text when I want to reveal the current file in the side bar and then ... "command": "reveal_in_side_bar_and_focus" } See Question&Answers more detail:os...

commented Dec 28, 2023 in Technique[技术] by Vasc (100 points)

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nlp - Wordnet Find Synonyms

I am searching for a way to find all the synonyms of a particular word using wordnet. I am using JAWS. For example ... for what I want to do? See Question&Answers more detail:os...

commented Dec 28, 2023 in Technique[技术] by Vasc (100 points)

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python - Why I obtain this error migrationg data from SQL Lite to Posgres DB ? duplicate key value violates unique constraint

I am pretty new in Django and Python and I am trying to follow this videotutorial about how to migrate a Django ... can I try to fix it? See Question&Answers more detail:os...

commented Nov 13, 2023 in Technique[技术] by rchedjou (100 points)

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python - How add keyboard shortcut where one is missing from standard button on PyQT5 QMessageBox?

Upon creating a message box with standard buttons in PyQT5, I find that only some of them have keyboard shortcuts. How ... .Yes ) M.setDefaultButton( QMessageBox.No ) M.exec()...

commented Oct 18, 2023 in Technique[技术] by casino games (100 points)

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c# - Screen cutout in smartphone hides part of unity app

I have problem with screen cutout on my unity app. When I run app my phone screen cutout hides part of my program ... . (I am not so good in English) Review picture below...

answered May 6, 2023 in Technique[技术] by YoWhatsappAPK (100 points)

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angular - Can't resolve all parameters for AppComponent

i'm building big project, this is started part of it. my problem is very common, however I did not find a way ... OS: linux x64 Angular: 5.0.2 See Question&Answers more detail:os...

answered May 6, 2023 in Technique[技术] by Shane lic (100 points)

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mongodb - why embedded mongo process not stoping by mongodExecutable.stop()?

Embedded mongo started successful with below code,,but not stoping by mongodExecutable.stop(),this suppose to stop the running ... () throws Exception { assertEquals(1, 1); } }...

answered May 6, 2023 in Technique[技术] by sophiagutiares (100 points)

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barcode scanner - How to distinguish between multiple input devices in C#

I have a barcode scanner (which acts like a keyboard) and of course I have a keyboard too hooked up to a ... barcode is shown. So thanks Nicholas for your help. Question&Answers:os...

answered Apr 14, 2023 in Technique[技术] by ericparker (100 points)

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keyword - Logical AND in Forth?

I know the AND word defines binary and... but what defines logical and? See Question&Answers more detail:os...

answered Jan 6, 2023 in Technique[技术] by pDaleC (100 points)

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java - How to convert brave.propagation.TraceContext to JSON

Is there a way to convert the brave.propagation.TraceContext object to JSON? I tried new ObjectMapper().writeValueAsString(traceContextObject) but it gives {"localRoot":true}...

answered Nov 26, 2022 in Technique[技术] by gbwhatsapp00 (100 points)

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android - Animate SliverAppBar title position with Scroll - Flutter

I am working on this app in flutter and I want to change the position of the title of this page so that it sets nicely beside the ... color: Colors.blueAccent, ), ), ), ], )); } }...

commented Nov 3, 2022 in Technique[技术] by YoWhatsappAPK (100 points)

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php - org.json.JSONException: End of input at character 0 of when i want to use json for get information from database

i see this exception org.json.JSONException: End of input at character 0 of when i use json for get user information from ... -input-at-character-0-of-when-i-want-to-use-json-f...

commented Oct 6, 2022 in Technique[技术] by khanabid (100 points)

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java - How to mock an enum singleton class using Mockito/Powermock?

I am unsure on how to mock an enum singleton class. public enum SingletonObject{ INSTANCE; private int num; protected ... and Mockito 1.8.5. See Question&Answers more detail:os...

answered Oct 6, 2022 in Technique[技术] by runi123 (100 points)

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python - GROK LEARNING: Cryptography Multi-key

I am trying to write a program to decrypt an XOR cipher with a key that has multiple characters in python and then print ... should I fix this? Any help is appreciated, thank you....

answered Oct 6, 2022 in Technique[技术] by legit (100 points)

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c# - Finding common columns from two datatable and using those for Join condition in LINQ

I have two Data Tables and these are completely dynamic. These would be generated at runtime. Now I want to ... dynamically. Please help me. See Question&Answers more detail:os...

commented Sep 25, 2022 in Technique[技术] by tsantony (100 points)

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How to define a decimal class holding 1000 digits in python?

I need a class holding 1000 decimal digits to calculate something like pi number in a series. Taking time ... extra large decimal numbers! See Question&Answers more detail:os...

commented Aug 5, 2022 in Technique[技术] by anonymous

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linux - BitBucket Configuration for cross platform usage

I need to configure Bitbucket on an azure linux vm (Ubuntu server) as i want to manage all repositories containing my . ... able to figure it out. Thanks in advance for your help!...

answered Aug 3, 2022 in Technique[技术] by kossmoss (100 points)

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css - Header elements alignment

I'm trying to replicate this header: https://minelligroup.com/ on this website that is related: https://blog.minelligroup.com/ ... but I can't solve it. Thank you for your help....

commented Aug 3, 2022 in Technique[技术] by lorenserian (100 points)

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2 answers

electron文件类型的自定义协议为啥不能带参数呢？

使用protocol.registerFileProtocol注册的custom协议，但是如果请求的URL中，文件名后面带有问号后就无法读文件了比如custom://localhsot/abc.js?v=1 类似的情况就无法使 ... 看了文档也没找到解决办法临时使用了registerHttpProtocol解决但还是想统一用File的...

answer selected Jul 29, 2022 in Technique[技术] by 深蓝 (71.8m points)

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python - Distributed 1.21.8 requires msgpack, which is not installed

I'm having a problem trying to install plotly. I proceeded to upgrade anaconda using the command line on Debian ... does not fix the problem See Question&Answers more detail:os...

answered Jul 25, 2022 in Technique[技术] by justinkion (100 points)

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git commit 提交代码lint失败，为什么会自动给我stash？

今天在代码提交的时候，lint失败了，git就自动把我代码删除（stash贮存起来了），可是之前都是校验失败不会动我的代码啊，有没有大佬知道是什么原因？...

comment edited Jul 22, 2022 in Technique[技术] by ananyaa (100 points)

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c# - OpenGL 4.2 LookAt matrix only works with -z value for eye position

I am trying to understand and apply modern OpenGL matrix transformations. I already read a lot of different sources but ... SwapBuffers(); } } } See Question&Answers more detail:os...

commented Jul 22, 2022 in Technique[技术] by Chawy (100 points)

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windows server 2016 - vcruntime140.dll 14.0 not compatible with PHP build

I have downloaded PHP 7.4.1 NTS vc15 x86 on a windows server 2016 machine. I also downloaded and installed ... 't really address the problem. See Question&Answers more detail:os...

answered Jul 20, 2022 in Technique[技术] by PcPro (100 points)

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Read XML content from public URL Java

I'm trying to read XML content from a public URL source file, which can be read through its URL. This XML: https://www ... } catch (Exception e) { e.printStackTrace(); } } Thanks!...

comment edited Jul 6, 2022 in Technique[技术] by dreamingCode (100 points)

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javascript - TradingView onMoreTickmarksRequested I undefined

I'm trying to use TradingView to show a chart with historical + live data. When the chart is instantiated & history ... too but I have nothing except this error. Thanks a lot...

commented Jul 6, 2022 in Technique[技术] by dreamingCode (100 points)

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