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What is the tilde (~) in the enum definition?
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~ is the unary one's complement operator -- it flips the bits of its operand.
~0 = 0xFFFFFFFF = -1
in two's complement arithmetic, ~x == -x-1
the ~ operator can be found in pretty much any language that borrowed syntax from C, including...
What is N-Tier architecture?
...mmend it, you can host logical tier and database on the same box.
Edit: One implication is that presentation tier and the logic tier (sometimes called Business Logic Layer) needs to cross machine boundaries "across the wire" sometimes over unreliable, slow, and/or insecure network. This is very d...
How is location accuracy measured in Android?
Does anyone know the proper interpretation of the accuracy measurements returned by getAccuracy()? For instance, are they calculated as:
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How do you switch pages in Xamarin.Forms?
... built-in:
NavigationPage, where the next page slide in,
TabbedPage, the one you don't like
CarouselPage, that allows for switching left and right to next/prev pages.
On top of this, all pages also supports PushModalAsync() which just push a new page on top of the existing one.
At the very end,...
Why use Gradle instead of Ant or Maven? [closed]
...that Gradle is a toy project - see comments], but I'd say that the reasons one would consider using it would be because of the frustrations of Ant and Maven.
In my experience Ant is often write-only (yes I know it is possible to write beautifully modular, elegant builds, but the fact is most people...
JavaScript: How do I print a message to the error console?
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+1. And for the benefit of anyone arriving at this question now, it's worth pointing out that since the question was answered, all browsers have now implemented the console object, so console.log() etc should work in all browsers, including IE. However, i...
Convert string[] to int[] in one line of code using LINQ
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Nice. Didn't know that one. +1
– spender
Aug 19 '09 at 0:17
The IL...
What does the caret operator (^) in Python do?
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It's a bitwise XOR (exclusive OR).
It results to true if one (and only one) of the operands (evaluates to) true.
To demonstrate:
>>> 0^0
0
>>> 1^1
0
>>> 1^0
1
>>> 0^1
1
To explain one of your own examples:
>>> 8^3
11
Think about i...
The Web Application Project […] is configured to use IIS. The Web server […] could not be found.
...to 'Telerik_Web_UI_WebResource_axd'
– dotnet-practitioner
Jun 4 '12 at 23:19
What gives that error, IIS or Visual Stud...
Android Studio installation on Windows 7 fails, no JDK found
...d the SDK location in the Android studio to my existing SDK instead of the one that came in the Android Studio bundle.
– Jaison Brooks
May 15 '13 at 21:07
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