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“is” operator behaves unexpectedly with integers
...id(b)
11662828
Here's what I found in the Python 2 documentation, "Plain Integer Objects" (It's the same for Python 3):
The current implementation keeps an
array of integer objects for all
integers between -5 and 256, when you
create an int in that range you
actually just get back a re...
When to use Comparable and Comparator
...s are every future sorting use case would require a comparator, at which point the implementation of comparable may slow down users of the class, not speed them up.
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Is there a way to access an iteration-counter in Java's for-each loop?
...n provide your own counter.
The reason for this is that the for-each loop internally does not have a counter; it is based on the Iterable interface, i.e. it uses an Iterator to loop through the "collection" - which may not be a collection at all, and may in fact be something not at all based on ind...
Shell Script — Get all files modified after
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Converting an arbitrary timestamp into a fractional, relative amount of time seems neither correct nor particularly convenient. The solution below using -newermt is much nicer.
– Bobby Jack
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Select multiple images from android gallery
... but i'm not satisfied with the answers. Mainly because i found something interesting in de docs in my IDE (i come back on this later) and thereby i don't want to use a custom adapter but just the vanilla one.
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How do you make a HTTP request with C++?
...ee if it contains a 1 or a 0. Is it also possible to download the contents into a string?
22 Answers
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Why should I not include cpp files and instead use a header?
... same as any other. However, although not illegal, including source files into your program will pretty much eliminate any advantages you would've got from separating your source files in the first place.
Essentially, what #include does is tell the preprocessor to take the entire file you've speci...
What is the difference between localStorage, sessionStorage, session and cookies?
...ocalStorage only allow you to store strings - it is possible to implicitly convert primitive values when setting (these will need to be converted back to use them as their type after reading) but not Objects or Arrays (it is possible to JSON serialise them to store them using the APIs). Session stor...
function declaration isn't a prototype
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In C int foo() and int foo(void) are different functions. int foo() accepts an arbitrary number of arguments, while int foo(void) accepts 0 arguments. In C++ they mean the same thing. I suggest that you use void consistently when ...
Get/pick an image from Android's built-in Gallery app programmatically
...eActivity extends Activity {
// this is the action code we use in our intent,
// this way we know we're looking at the response from our own action
private static final int SELECT_PICTURE = 1;
private String selectedImagePath;
public void onCreate(Bundle savedInstanceState) {...