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Can anyone explain the tilde dot (~.) in R? I have seen some posts about it already. I know the tilde is used for ... %>% detect(~. > 5) Thanks 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 - make a JLabel wrap it's text by setting a max width

I have a JLabel which has a lot of text on it. Is there a way to make the JLabel have a max width so ... make it not exceed this width? Thanks See Question&Answers more detail:os...

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

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unix - How to attach a process in gdb

I have a simple C program that forks a process and then runs an executable. I want to attach the child process ... or directory. Any idea 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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caching - What's default value of cache-control?

My problem is: sometimes browser over-cached some resources even if i've already modified them. But After F5, ... when "Enter in the bar" See Question&Answers more detail:os...

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

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css - How to align nav items to the right in Bootstrap 5?

I have copied a navbar HTML code from https://www.codeply.com/go/qhaBrcWp3v Example 6: <nav class="navbar navbar- ... (ml-auto didn't work) 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 - EL expressions won't executed in Tomcat 5.5, but working in tomcat 6.0.20

I am developing my application using spring-web-mvc... Now at my Controller it returns like this : public class ... ? 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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tsql - Isoweek in SQL Server 2005

In SQL Server 2008 the isoweek can be found with this: SELECT datepart(iso_week, getdate()) Before SQL Server ... of finding a good solution. 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 convert a simple .Net console project a into portable exe with Mono and mkbundle?

I'd like to convert my simple pure .Net 2.0 console utility into a portable exe which I could just put ... a simple C# Visual Studio project? See Question&Answers more detail:os...

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

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sql - The used SELECT statements have a different number of columns (REDUX!!)

There's another question out there similar to this, but it didn't seem to answer my question. My question is this: ... so. I'll take my lumps. 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 - Accessing a mapper's counter from a reducer

I need to access the counters from my mapper in my reducer. Is this possible? If so how is it done? As ... wrong or is this just not possible? 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# - A way to push buffered events in even intervals

What I'm trying to achieve is to buffer incoming events from some IObservable ( they come in bursts) ... also only single subscription allowed. See Question&Answers more detail:os...

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

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How to add "Android Design Support Library" to Eclipse with ADT-plugin?

The Android Developers Blog announced in May 2015: The Design library is available now, so make sure to update the ... but haven't found any. 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 is conversion of float/double to int handled in printf?

Consider this program int main() { float f = 11.22; double d = 44.55; int i,j; i = f; //cast float to ... )) return 0; } How does this work? 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 Query for an event log details with a given event id?

How to know whether a particular event (given event ID, time and node as inputs) is logged or not? [In this ... 5315 and time is current time. See Question&Answers more detail:os...

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

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python - Convert HTML into CSV

I want to convert a HTML table as obtained from the script below into a CSV file, but got type error as follows: ... data_0_0_0_0">6.2</td></tr> 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 - Swing application -> Drag & drop to the desktop / folder

When Finder of Mac, Explorer of Windows did drag & drop of a specific item in the Swing application to a ... me a necessary class and method. See Question&Answers more detail:os...

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

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python - Convert list into list of lists

I want to convert list into list of list. Example: my_list = ['banana', 'mango', 'apple'] I want: my_list = ... ]] I tried: list(list(my_list)) 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 - How to find the number of objects in the heap

How can I find the number of live objects on the heap in Java program? 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 - Promise.all with Firebase DataSnapshot.forEach

I have a couple of HTML select's (dropdowns) that are populated from a Firebase node called "states" (see image below). ... class="loader"><img src="images/loading.gif"><p class...

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

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scala - No Json serializer as JsObject found for type play.api.libs.json.JsObject

I have the following code that works in a console app when referencing "org.reactivemongo" %% "play2-reactivemongo" % ... What am I doing wrong? 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 - Getting a backtrace of other thread

In Linux, to get a backtrace you can use backtrace() library call, but it only returns backtrace of current ... . Any other ideas? Thanks. 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 set Chrome preferences using Selenium Webdriver .NET binding?

Here is what I'm using, user agent can be successfully set, while download preferences cannot. Windows 7, ... "directory_upgrade": true }, See Question&Answers more detail:os...

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

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WCF service configuration file question regarding <baseAddresses>

From what I've seen the tag is ignored when hosting a WCF service in IIS. I understand that when self- ... ignores this section. Thanks, kyle 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 - jpeg image color gets drastically changed after just ImageIO.read() and ImageIO.write()

I have been using ImageIO.read() and ImageIO.write() methods in javax.imageio.ImageIO for reading and writing ... images after read and write: See Question&Answers more detail:os...

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

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Multiline function literal as arguments in Scala

I always wondered why sometimes with function literals we can ignore the curly brace even for multiple statements. ... is working as intended? 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 - Changing the default XML namespace prefix generated with JAXWS

I am using JAXWS to generate a WebService client for a Java Application we're building. When JAXWS build its ... set this information? Thanks! 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++ - Dark transparent layer over a QMainWindow in Qt

I need to implement a "Loading..." window in my application but I do prefer to cover the whole QMainWindow ... . Any help will be appreciated. See Question&Answers more detail:os...

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

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swing - Java - placeholder on textfield

I'm trying to create a GUI with Swing. My problem is, I have a textfield, but I want it to have ... //davidwalsh.name/demo/html5-placeholder.php See Question&Answers more detail:os...

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

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