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When writing multi-threaded applications, one of the most common problems experienced are deadlocks. My questions to ... how do you prevent them from occurring? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - When should one use Theme.AppCompat vs ThemeOverlay.AppCompat?

There are the following Theme.AppCompat classes: Theme.AppCompat Theme.AppCompat.Light Theme.AppCompat.Light. ... intended use case for ThemeOverlay is. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Recommended gcc warning options for C

Closed. This question is opinion-based. It is not currently accepting answers. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - What are the pros and cons of performing calculations in sql vs. in your application

shopkeeper table has following fields: id (bigint),amount (numeric(19,2)),createddate (timestamp) Let's say, ... terms of performance and other aspects and why? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Running Python code in Vim

I am writing Python code using Vim, and every time I want to run my code, I type this inside Vim: :w ! ... scripts from a terminal maybe? I am using Linux. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - How to dismiss ViewController in Swift?

I am trying to dismiss a ViewController in swift by calling dismissViewController in an IBAction @IBAction func cancel ... dismissed. What could be the problem? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How can I make an Image with a transparent Backround in Pygame?

I am fairly new to programming, so I bought the Book "Python Crash Course" by Eric Matthes. Recently, I ... I make the of the Picture backround transparent? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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git track - How do I remove version tracking from a project cloned from git?

I want to remove all version tracking from a project's directory. What is the correct method to do this? Can ... all Git tracking and start fresh with git init. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How can I archive git branches?

I have some old branches in my git repository that are no longer under active development. I would like to ... . Are there any consequences of doing that? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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performance - Best way to stress test a website

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How can I represent an infinite number in Python?

How can I represent an infinite number in python? No matter which number you enter in the program, no ... be greater than this representation of infinity. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wcf binding - BasicHttpBinding vs WsHttpBinding vs WebHttpBinding

In WCF there are several different types of HTTP based bindings: BasicHttpBinding WsHttpBinding WebHttpBinding ... features / performance and compatability? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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xcode4 - Xcode 4 can't locate public header files from static library dependency

Alternate titles to aid search Xcode can't find header Missing .h in Xcode Xcode .h file not found lexical ... library when trying to compile as a dependancy? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - IntelliJ: Never use wildcard imports

Is there a way to tell IntelliJ never to use wildcard imports? Under 'Settings > Code Style > Imports', I can see ... there was a nicer way to just turn it off. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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logging - Ruby on Rails production log rotation

What is the best way to enable log rotation on a Ruby on Rails production app? Is it by using logrotate ... to use when initialising logger from the app? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - Release generating .pdb files, why?

Why does Visual Studio 2005 generate the .pdb files when compiling in release? I won't be debugging a release build, so why are they generated? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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396 views

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Why is git push gerrit HEAD:refs/for/master used instead of git push origin master

I've just started using gerrit and I want to know why we need to do git push gerrit HEAD:refs/for/master ... rejected] master -> master (prohibited by Gerrit) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python pack() and grid() methods together

Im new to python so please forgive my Noob-ness. Im trying to create a status bar at the bottom of my app ... ) app.mainloop() Any help is appreciated! Thanks! Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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441 views

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java.lang.ClassCastException: android.view.ViewGroup$LayoutParams cannot be cast to android.widget.Gallery$LayoutParams

I am trying to add Fancycoverflow in my app,It works fine with static image as given in this example. but i did some ... ; float[] color_position = { 0, 1 }; TileMode tile_mode =...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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css - Vertical-align aligns everything else except self

I was trying to understand how vertical-align works. In Understanding vertical-align, or "How (Not) To Vertically Center ... >What in the</span> World? </p> Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Multiple clients access the server concurrently

I am having a login screen and now say we have 2 users with username:amit and ajay and their password: "pass" ... password.How to do it in java?Please help . Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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695 views

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logic - Einsteins Riddle Prolog

I need some help with a prolog homework for my AI class. The question is to write prolog code for einstein's ... think I can go anywhere with this one. :/ Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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113 views

1 answer

Is there any way to change directory using C language?

Is there any way by which I can change to any directory by executing a C program? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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290 views

1 answer

Send Post request along with HttpHeaders on Android

I need to post data to server (with "referer" header field) and load the response in Webview. Now, there are ... something or what I am trying is not possible? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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677 views

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xmlhttprequest - Catching an Access-Control-Allow-Origin error in JavaScript

I wrote a function that keeps returning an Access-Control-Allow-Origin error. This is actually fine for me; I don't ... Caught it!'); console.log(e.message); } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Are there any standards for mobile device web browsers in terms of thread sleeping?

Closed. This question needs debugging details. It is not currently accepting answers. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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131 views

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java - Last row always removed from DefaultTableModel, regardless of index

I face some problems when I am trying to remove rows from a table in java. In particular, I use the DefaultTableModel ... ) { new MainJF().setVisible(true); } } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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307 views

1 answer

JavaScript regex: Positive lookbehind alternative

I am looking for an alternative for this: (?<=.dd)d (Match third digit after a period.) I'm aware I ... use replace on the string, without adding a callback. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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