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What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
...s has changed to abstract class AnyVal extends Any with NotNull, and it is now possible to extend AnyVal with the new value classes feature, e.g.: class MyValue(val u: Int) extends AnyVal.
– ebruchez
Sep 28 '12 at 22:15
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What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?
... (nullables has been introduced with .NET 2.0 and anyway it's also a well-known convention in use from many years) if they didn't find anything. Let's imagine you have an array of objects comparable with a string. You may think to write this code:
// Items comparable with a string
Console.WriteLine...
HTML input - name vs. id [duplicate]
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I know it sends the data to the webserver and there you can store it in the database. (was just providing some examples of what you could do) Excuse me for my inattentiveness on that matter, I have edited my answer :)
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Read an Excel file directly from a R script
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And now there is readxl:
The readxl package makes it easy to get data out of Excel and into R.
Compared to the existing packages (e.g. gdata, xlsx, xlsReadWrite etc)
readxl has no external dependencies so it's easy to ins...
Why does my JavaScript code receive a “No 'Access-Control-Allow-Origin' header is present on the req
...not seeing the same problem when using postman, this means that you are unknowingly not sending the same request via postman.
– Ray Nicholus
Nov 17 '13 at 20:01
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What's the difference between JPA and Spring Data JPA?
...am a bit confused about the difference between Spring Data-JPA and JPA. I know about JPA that it is a specification for persisting the Java Objects to a relational database using popular ORM technology.
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C# DLL config file
...g with this issue for about two days, and didn't get it to work until just now. As debugging a test the ConfigurationManager was reading from the machine.config -I think-, since the connection strings pulled out were about SQLExpress -connection string I didn't have listed-.
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How to get result of console.trace() as string in javascript with chrome or firefox?
...#<Object> has no method 'debug'
at eval at <anonymous> (unknown source)
at eval (native)
at Object._evaluateOn (unknown source)
at Object._evaluateAndWrap (unknown source)
at Object.evaluate (unknown source)
and in Firefox:
@http://www.google.com.ua/:87 _firebugInj...
What are the dark corners of Vim your mom never told you about? [closed]
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Might not be one that 99% of Vim users don't know about, but it's something I use daily and that any Linux+Vim poweruser must know.
Basic command, yet extremely useful.
:w !sudo tee %
I often forget to sudo before editing a file I don't have write permissions on. Wh...
How to fix SSL certificate error when running Npm on Windows?
...Y & HTTPS_PROXY are environment variables used by lots of software to know where your proxy is. Under Windows, lots of software also uses your OS specified proxy which is a totally different thing. That means you can have Chrome (which uses the proxy specified in your Internet Options) connectin...