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SQL Update with row_number()
I want to update my column CODE_DEST with an incremental number. I have:
8 Answers
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Does Java casting introduce overhead? Why?
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There are 2 types of casting:
Implicit casting, when you cast from a type to a wider type, which is done automatically and there is no overhead:
String s = "Cast";
Object o = s; // implicit casting
Explicit casting, when you go from a wider type to a more na...
How do I close a connection early?
I'm attempting to do an AJAX call (via JQuery) that will initiate a fairly long process. I'd like the script to simply send a response indicating that the process has started, but JQuery won't return the response until the PHP script is done running.
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How to emulate GPS location in the Android Emulator?
I want to get longitude and latitude in Android emulator for testing.
33 Answers
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json_decode to array
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edited Apr 23 '14 at 17:29
Francisco Corrales Morales
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Rails 4 Authenticity Token
...king on a new Rails 4 app (on Ruby 2.0.0-p0) when I ran into some authenticity token problems.
13 Answers
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How to put multiple statements in one line?
I wasn't sure under what title to ponder this question exactly, coding golf seems appropriate if a bit unspecific.
10 Answe...
Equivalent to 'app.config' for a library (DLL)
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You can have separate configuration file, but you'll have to read it "manually", the ConfigurationManager.AppSettings["key"] will read only the config of the running assembly.
Assuming you're using Visual Studio as your IDE, you can right click the desired project → Add → New item → ...
'any' vs 'Object'
...nything goes, you are providing no information about what is stored in a - it can be anything! And therefore the transpiler will allow you to do whatever you want with something defined as any.
So in short
any can be anything (you can call any method etc on it without compilation errors)
Object e...
When is an interface with a default method initialized?
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This is a very interesting issue!
It seems like JLS section 12.4.1 ought to cover this definitively. However, the behavior of Oracle JDK and OpenJDK (javac and HotSpot) differs from what's specified here. In particular, the Example 12.4.1-3 from this section ...