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Checking that a List is not empty in Hamcrest
...you could use:
hasSize(greaterThan(0))
(import static org.hamcrest.number.OrderingComparison.greaterThan; or
import static org.hamcrest.Matchers.greaterThan;)
Example:
// given
List<String> list = new ArrayList<String>();
// then
assertThat(list, hasSize(greaterThan(0)));
The most i...
STAThread and multithreading
...
Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
...
An existing connection was forcibly closed by the remote host
...r solution :
Enable strong cryptography in your local machine or server in order to use TLS1.2 because by default it is disabled so only TLS1.0 is used.
To enable strong cryptography , execute these commande in PowerShell with admin privileges :
Set-ItemProperty -Path 'HKLM:\SOFTWARE\Wow6432Node\Mi...
Can't resize UIView in IB
...
In order to achieve that in XCode 4.6.3/5.0.2 you need to follow the screenshot below:
Under 'File Inspector' -> untick Use Auto Layout
Click on Attributes Selector & Choose Freeform for Size
This is needed when creat...
How expensive is RTTI?
...
if (typeid(a) == typeid(b)) {
B* ba = static_cast<B*>(&a);
etc;
}
instead of
B* ba = dynamic_cast<B*>(&a);
if (ba) {
etc;
}
The former involves only one comparison of std::type_info; the latter necessarily involves traversing an inheritance tree plus comparisons.
P...
What does the clearfix class do in css? [duplicate]
... to use the clear property in CSS and how floats render in each browser in order to achieve a perfect cross-browser clear-fix.
What you have
Your provided style is a form of clearfix with backwards compatibility. I found an article about this clearfix. It turns out, it's an OLD clearfix - still ca...
New self vs. new static
...
Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
...
Releasing memory in Python
... (a file, mmapped or otherwise; the shared-memory APIs in multiprocessing; etc.).
Sending large amounts of data between processes means the data have to be pickleable (or, if you stick them in a file or shared memory, struct-able or ideally ctypes-able).
...
Name node is in safe mode. Not able to leave
...
In order to forcefully let the namenode leave safemode, following command should be executed:
bin/hadoop dfsadmin -safemode leave
You are getting Unknown command error for your command as -safemode isn't a sub-command for ha...
Compile, Build or Archive problems with Xcode 4 (and dependencies)
...th"
It seemed right but was still failing. I then tried rearranging the order of 2 & 3 and all of a sudden it built fine. So not sure why that was the hickup, but wanted to add it to the list of things to try in case it helps someone else.
...