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I am trying to connect MySQL database in Netbeans and stuck at the very first step- connecting the database. My ... i doing wrong here??? See Question&Answers more detail:os...

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

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Delphi 2009: How to communicate between Windows service & desktop application under Vista?

How can a desktop application communicate with a Windows service under Vista/Windows2008/Windows7? The application needs ... sample code also) See Question&Answers more detail:os...

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

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Mapping multiple locations with Google Maps JavaScript API v3 and Geocoding API

I'm using Google Maps JavaScript API v3 to generate a map with multiple locations/markers. I only have the address for ... (map,marker); }); } See Question&Answers more detail:os...

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

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c++ - How to sort a linked list using bubble-sort?

I am trying to use bubble-sort in order to sort a linked list. I use curr and trail in order to traverse thru ... } } What am I missing here? See Question&Answers more detail:os...

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

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c++ - Is the behavior of subtracting two NULL pointers defined?

Is the difference of two non-void pointer variables defined (per C99 and/or C++98) if they are both NULL valued? For ... b->pwrite - b->pread; } See Question&Answers more detail:os...

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

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Android text view color doesn't change when disabled

When I call setEnabled(false) for a TextView object the text color doesn't change. I expected it will be changed ... to normal. Any ideas ? See Question&Answers more detail:os...

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

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build.gradle - android : Error converting byte to dex

So, I am getting the following error while running the project after upgrading build.gradle ( ... Visiting android/support/v7/recyclerview/R$attr IncrementalSupportVisitor V...

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

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c# - Better way to sort array in descending order

I have a array of int which I have to sort by descending. Since I did not find any method to sort the array in ... way to do the same in c#? See Question&Answers more detail:os...

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

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node.js - MongoDB + nodejs : how to query ISODate fields?

I am using nodejs with the node-mongodb-native driver (http://mongodb.github.io/node-mongodb-native/). I have ... my nodejs program? Thank you See Question&Answers more detail:os...

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

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memory - What are uses of the C++ construct "placement new"?

I just learned about the C++ construct called "placement new". It allows you to exactly control where a ... the same location in memory. See Question&Answers more detail:os...

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

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c# - IIS app pool recycle + quartz scheduling

I'm running a web app on IIS 7.5 and it needs to recycle occasionally (otherwise memory usage gets out of ... to ensure quartz is always online? See Question&Answers more detail:os...

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

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redirect - Classic C. Using pipes in execvp function, stdin and stdout redirection

I want to simulate bash in my Linux C program using pipes and execvp function. e.g ls -l | wc -l There is my ... and I don't have a clue why. See Question&Answers more detail:os...

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

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math - carry/overflow & subtraction in x86

I'm trying to wrap my head around overflow & carry flags in x86. As I understand it, for addition of signed 2's ... flags as adding A and -B? See Question&Answers more detail:os...

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

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vba - Use getElementById on HTMLElement instead of HTMLDocument

I've been playing around with scraping data from web pages using VBS/VBA. If it were Javascript I'd be away as ... ("tr") would be awesome... See Question&Answers more detail:os...

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

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random - Objective-C: Modulo bias

Using: value = arc4random() % x How can I avoid or eliminate modulo bias? At least according to Wikipedia ... when programming games of chance. See Question&Answers more detail:os...

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

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java - Where is allocated variable reference, in stack or in the heap?

I have a question What happend when I declare a variable inside a method, for example. void myMethod() { ... java clases ? Thanks in advance See Question&Answers more detail:os...

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

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null - How to add a conditional unique index on PostgreSQL

I have a line_items table with following columns: product_id variant_id variant_id is nullable. Here is the ... possible in PostgreSQL? See Question&Answers more detail:os...

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

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Yii2 theme integration

I have installed Yii2 advanced application, and now I want to change backend theme. How can I do this? Is ... /main.php but nothing changed! See Question&Answers more detail:os...

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

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javascript/jquery - add debounce to a button

I want to add a debounce to a button, but i want to perform some actions each time user clicks button, but ... , $.debounce(process, 5000)); See Question&Answers more detail:os...

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

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javascript - $getJSON and for loop issue

This is to populate a table with the amount of results that are returned from the MediaWiki API query /api.php? ... using an id within a loop? See Question&Answers more detail:os...

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

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linux - Install Mono and Monodevelop on CentOS 5.x/6.x

I am trying to install Mono and Monodevelop on a CentOS 5.9 environment. I have tried the following instructions, ... to the the above link. See Question&Answers more detail:os...

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

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xsl to convert xml to json

Input XML <Root> <Result> <System> <Name>ABC</Name> <ID pname="PAD"> <value>4567</value> </ID> < ... ID name and the values under systems. See Question&Answers more detail:os...

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

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java - ejb lookup failing with NamingException

I've added the following in my web.xml: <ejb-ref> <ejb-ref-name>ejb/userManagerBean</ejb-ref- ... .EjbClient.getUserManager(EjbClient.java:34) See Question&Answers more detail:os...

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

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itextsharp - CSS not getting applied - C# .NET

I'm using iTextSharp for converting a HTML page to PDF. I'm making use of the helper class given here and I ... How to add it using iTextSharp? See Question&Answers more detail:os...

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

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javascript - Why does my canvas go blank after converting to image?

I am trying to convert the canvas element on this page to a png using the following snippet (e.g. enter in ... convert this canvas to a png? See Question&Answers more detail:os...

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

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java - Why can't I enter a string in Scanner(System.in), when calling nextLine()-method?

How does this program actually work...? import java.util.Scanner; class string { public static void main(String a[ ... to enter a string here? See Question&Answers more detail:os...

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

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c - Pipes, dup2 and exec()

I have to write a shell that can run pipes. For example commands like ls -l | wc -l". I have ... up right after I enter the command? See Question&Answers more detail:os...

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

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ios - Dynamic height for static table cells with wrapping labels?

My text is two lines long in portrait mode. When I switch to landscape mode, it fits into a single line ... or switches the focus as appropriate See Question&Answers more detail:os...

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

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