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How do you crash a JVM?
...t() which terminates the JVM immediately without proper cleanup. But apart from that, native code and resource exhaustion are the most likely answers. Alternatively you can go looking on Sun's bug tracker for bugs in your version of the JVM, some of which allow for repeatable crash scenarios. We use...
Unittest setUp/tearDown for several tests
...sult)
type(self).runCount += 1
With this trick, when you inherit from this TestCase (instead of from the original unittest.TestCase), you'll also inherit the runCount of 0. Then in the run method, the runCount of the child testcase is checked and incremented. This leaves the runCount varia...
RGB to hex and hex to RGB
...t made a color close to black appear dark pink. Better to use the function from top answer.
– Maciej Krawczyk
Apr 27 '16 at 11:20
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show 2 m...
What does send() do in Ruby?
... a ruby (without rails) method allowing to invoke another method by name.
From documentation
class Klass
def hello(*args)
"Hello " + args.join(' ')
end
end
k = Klass.new
k.send :hello, "gentle", "readers" #=> "Hello gentle readers"
http://corelib.rubyonrails.o...
Regular expression to search for Gadaffi
...
One interesting thing to note from your list of potential spellings is that there's only 3 Soundex values for the contained list (if you ignore the outlier 'Kazzafi')
G310, K310, Q310
Now, there are false positives in there ('Godby' also is G310), but b...
.NET - Dictionary locking vs. ConcurrentDictionary
...ople don't act responsibly. For instance, let's say a customer takes a can from a pyramid-can while a clerk is currently building the pyramid, all hell would break loose. Or, what if two customers reaches for the same item at the same time, who wins? Will there be a fight? This is a non-threadsafe-c...
Skip the headers when editing a csv file using Python
...tedly very small amount of) overhead to each iteration. The consume recipe from itertools can be used to skip many values quickly, without adding wrapping to subsequent usage, in the case where the islice would have a start but no end, so the overhead isn't gaining you anything.
...
Why does InetAddress.isReachable return false, when I can ping the IP address?
...URLConnection)url.openConnection();
//trying to retrieve data from the source. If there
//is no connection, this line will fail
Object objData = urlConnect.getContent();
} catch (Exception e) {
e.printStackTrace();
r...
How to have conditional elements and keep DRY with Facebook React's JSX?
...f when a developer (me) tries to transfer patterns and approaches he knows from one area to another but it doesn't really work (in this case other template languages).
If you need a conditional element, do it like this:
render: function () {
return (
<div id="page">
{...
Undefined reference to static constexpr char[]
...ition for a static constexpr member if it is not odr-used, we can see this from the draft C++11 standard section 9.4.2 [class.static.data] which says (emphasis mine going forward):
[...]A static data member of literal type can be declared in the class
definition with the constexpr specifier; i...