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Getting activity from context in android
...ve a Context in the layout, but you will know it is actually your Activity and you can cast it so that you have what you need:
Activity activity = (Activity) context;
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Why historically do people use 255 not 256 for database field magnitudes?
...ric reason why? I assume it's something to do with paging / memory limits, and performance but the distinction between 255 and 256 has always confused me.
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How to calculate a Mod b in Casio fx-991ES calculator
...ect ab/c (number 1).
Now do your calculation (in comp mode), like 50 / 3 and you will see 16 2/3, thus, mod is 2. Or try 54 / 7 which is 7 5/7 (mod is 5).
If you don't see any fraction then the mod is 0 like 50 / 5 = 10 (mod is 0).
The remainder fraction is shown in reduced form, so 60 / 8 will r...
Span inside anchor or anchor inside span or doesn't matter?
I want to nest span and a tags. Should I
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How can I determine what font a browser is actually using to render some text?
...ecause it was from 4 years ago. The fact that old answers linger like this and the community cannot update them is one of the few remaining failures of Stack Overflow.
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Xcode + remove all breakpoints
...+6, in Xcode3 press CMD(⌘)+ALT+B.
Select all breakpoints with CMD(⌘)+A and delete them, like deleting text, with backspace.
There's no step 3 :)
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C programming in Visual Studio
...t menu I can choose between Visual Basic, Visual C#, Visual C++, Visual F# and others but I don't see "C" or "Visual C".
6 ...
Best way to initialize (empty) array in PHP
...o = [] rather than var foo = new Array() for reasons of object creation and instantiation. I wonder whether there are any equivalences in PHP?
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Call to undefined method mysqli_stmt::get_result
...hat worked. I uncommented the extension=php_mysqli_mysqlnd.dll in php.ini; and restarted Apache2.2 and MySQL services. Should I uncomment the line extension=php_mysqli_libmysql.dll? As per another page, mysqlnd is faster than libmysql. Also, can I expect mysqlnd installed on most popular hosting ser...
How do you unit test private methods?
...e code. Since Release code is optimized, you might see different behavior and different timings. In multithreaded code this means your unit tests won't appropriately detect race conditions. Much better is to use reflection via @AmazedSaint's suggestion below or use the built-in PrivateObject/Priv...