OStack Q&A-Knowledge Sharing Community

0 votes

200 views

1 answer

jsf - <h:selectOneRadio> renders table element, how to avoid this?

Is there a way to tell JSF that it should NOT render a <table> element when using <h:selectOneRadio>? I don' ... no sense in this case. Any help is appreciated! Question&Answers:os...

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

0 votes

1.0k views

1 answer

compiler errors - c++ multiple definitions of a variable

I have 4 files (2 headers, and 2 code files). FileA.cpp, FileA.h, FileB.cpp, FileB.h FileA.cpp: #include " ... know why, it seems as it should work just fine. Question&Answers:os...

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

0 votes

346 views

1 answer

c++ - What does it mean to have an undefined reference to a static member?

I just wrote a class with some static data members, but now I am getting errors about "undefined references". Why ... by those who came up with the idea.)_ Question&Answers:os...

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

0 votes

179 views

1 answer

c++ - OpenGL - How to create Order Independent transparency?

I've been working on a game engine for educational purposes and I came across this issue I cannot seem to find ... that. Could anyone help me fix this, please? Question&Answers:os...

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

0 votes

211 views

1 answer

math - Mathematically compute a simple graphics pipeline

I am trying to do / understand all the basic mathematical computations needed in the graphics pipeline to ... to calculate the individual pixels with colors. Question&Answers:os...

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

0 votes

279 views

1 answer

c# - Should I use public properties and private fields or public fields for data?

In much of the code I have seen (on SO, thecodeproject.com and I tend to do this in my own code), I ... and be placed in a special section in class diagrams! Question&Answers:os...

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

0 votes

165 views

1 answer

gcc - C extension: <? and >? operators

I observed that there was at some point a <? and >? operator in GCC. How can I use these under GCC 4. ... .c:473: error: expected expression before ?' token Question&Answers:os...

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

0 votes

81 views

1 answer

How can I access local scope dynamically in javascript?

If you want to use global functions and variable dynamically you can use: window[functionName](window[varName]); Is it ... variable >>>test.d() [123,2,3] Question&Answers:os...

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

0 votes

216 views

1 answer

how to persist current row in jqgrid

How to presist current row if grid is opened again or page is refreshed ? Answer in Persisting jqGrid column preferences ... , true); } Is this best solution ? Question&Answers:os...

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

0 votes

1.3k views

1 answer

python - Argument 1 has unexpected type 'NoneType'?

I have a problem with my PyQt button action. I would like to send a String with the Function but I got this Error: ... ")) widget.show() sys.exit(app.exec_()) Question&Answers:os...

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

0 votes

88 views

1 answer

java - Setting the maximum size of a JDialog?

The short version: do I need to do something tricky to get JDialog's setMaximumSize() to work? The full ... / MaximumSize interaction I don't know about? Question&Answers:os...

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

0 votes

165 views

1 answer

r - Table of Interactions - Case with pets and houses

I have a list of houses and a list of animal species. houses = c(1,1,2,3,4,4,4,4,5,6,5) ... vectors of same lengths, whatever if they contain numbers or string Question&Answers:os...

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

0 votes

839 views

1 answer

graphics - Does anyone know of a low level (no frameworks) example of a drag & drop, re-order-able list?

I am looking for code (any language) of a basic graphical list which can be reordered by drag and drop. So ... 't want to reinvent the wheel if not needed. Question&Answers:os...

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

0 votes

154 views

1 answer

java - recyclerview horizontal scrolling to left

I'm making an app where I'm using RecyclerView with SnapHelper class to make a scrollable horizontal card ... { RecyclerView.LayoutParams lp = (RecyclerView.LayoutParams) child.g...

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

0 votes

120 views

1 answer

version control - Git and Mercurial - Compare and Contrast

For a while now I've been using subversion for my personal projects. More and more I keep hearing ... they differ in terms of implementation and philosophy. Question&Answers:os...

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

0 votes

205 views

1 answer

algorithm - Big-O for Eight Year Olds?

This question already has answers here: Question&Answers:os...

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

0 votes

236 views

1 answer

How do you stop tracking a remote branch in Git?

How do you stop tracking a remote branch in Git? I am asking to stop tracking because in my concrete case, I ... to run git push origin :the_branch later on? Question&Answers:os...

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

0 votes

609 views

1 answer

cluster analysis - How do I determine k when using k-means clustering?

I've been studying about k-means clustering, and one thing that's not clear is how you choose the value of k. Is ... of trial and error, or is there more to it? Question&Answers:os...

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

0 votes

330 views

1 answer

python - Removing pip's cache?

I need to install psycopg2 v2.4.1 specifically. I accidentally did: pip install psycopg2 Instead of: pip ... specific version I'm including in the command? Question&Answers:os...

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

0 votes

214 views

1 answer

amazon ec2 - How to get the instance id from within an ec2 instance?

How can I find out the instance id of an ec2 instance from within the ec2 instance? Question&Answers:os...

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

0 votes

999 views

1 answer

certificate - Signing a Windows EXE file

I have an EXE file that I should like to sign so that Windows will not warn the end user about an application from ... the user. This is not the case for me. Question&Answers:os...

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

0 votes

111 views

1 answer

c++ - std::string to char*

I want to convert a std::string into a char* or char[] data type. std::string str = "string"; char* chr = ... ... . What methods are there available to do this? Question&Answers:os...

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

0 votes

153 views

1 answer

java - What is the main difference between Inheritance and Polymorphism?

I was presented with this question in an end of module open book exam today and found myself lost. I was ... I have seen which provide a definitive answer. Question&Answers:os...

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

0 votes

100 views

1 answer

java - Android ListView headers

I have ListView that has some kind of events on it. Events are sorted by day, and I would like to have header ... anyone guide me on how to do that easy way? Question&Answers:os...

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

0 votes

309 views

1 answer

easyphp - How can I find the php.ini file used by the command line?

I need to enable pdo_mysql in my EasyPHP environment, so I went to the php.ini file and uncommented the following line: ... used by the CLI. How can I find it? Question&Answers:os...

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

0 votes

96 views

1 answer

JSON and XML comparison

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)

0 votes

231 views

1 answer

Masking password input from the console : Java

How to mask a password from console input? I'm using Java 6. I've tried using console.readPassword(), but it ... "); } } I'm getting a NullPointerException... Question&Answers:os...

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

0 votes

541 views

1 answer

ios - How to detect AVplayer and get url of current video from WKWebView?

I'm using below code to extract url from UIWebView: it is working fine but, this same code using for WKWebView it' ... , please help me how to get this. Thanks. Question&Answers:os...

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

Categories

Recent questions

Just Browsing Browsing

Most popular tags