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Why is Class.newInstance() “evil”?
... This is the very nature of reflection in general ... not at all specific to Constructor.newInstance().
– Ryan Delucchi
Oct 24 '08 at 23:35
29
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Clicking the back button twice to exit an activity
...ode uses System.currentTimeMillis(); to store the time onBackPressed() is called;
private static final int TIME_INTERVAL = 2000; // # milliseconds, desired time passed between two back presses.
private long mBackPressed;
@Override
public void onBackPressed()
{
if (mBackPressed + TIME_INTERVAL ...
How can I see the specific value of the sql_mode?
...
The combination modes are all documented here: dev.mysql.com/doc/refman/5.5/en/server-sql-mode.html. For example, here you can see which 7 modes comprise the ORACLE combination mode: dev.mysql.com/doc/refman/5.5/en/…
– Ike Walk...
arrow operator (->) in function heading
...) + std::declval<T2>())
compose(T1 a, T2 b);
except it's getting really verbose now. So the alternate declaration syntax was proposed and implemented and now you can write
template <typename T1, typename T2>
auto compose(T1 a, T2 b) -> decltype(a + b);
and it's less verbose and t...
HTML/CSS: Make a div “invisible” to clicks?
...the overlay.
See the first answer to this question:
HTML "overlay" which allows clicks to fall through to elements behind it
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How to have conditional elements and keep DRY with Facebook React's JSX?
How do I optionally include an element in JSX? Here is an example using a banner that should be in the component if it has been passed in. What I want to avoid is having to duplicate HTML tags in the if statement.
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Break or return from Java 8 stream forEach?
... This works if finding an object was the goal, but that goal is usually served by a return statement from a findSomething method. break is more usually associated with a take while-kind of operation.
– Marko Topolnik
Apr 26 '14 at 19:53
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How to get HttpClient to pass credentials along with the request?
...Bytes(data));
}
}
catch (Exception exc)
{
// handle exception
}
finally
{
wic.Undo();
}
Note: Requires NuGet package: Newtonsoft.Json, which is the same JSON serializer WebAPI uses.
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What is a typedef enum in Objective-C?
I don't think I fundamentally understand what an enum is, and when to use it.
13 Answers
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Numpy where function multiple conditions
I have an array of distances called dists. I want to select dists which are between two values. I wrote the following line of code to do that:
...