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Difference between a Seq and a List in Scala
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A Seq is an Iterable that has a defined order of elements. Sequences provide a method apply() for indexing, ranging from 0 up to the length of the sequence. Seq has many subclasses including Queue, Range, List, Stack, and LinkedList.
A List is a Seq that is implem...
Get local IP address
...de still holds as valid, though it would be prudent to add a try..catch in order to handle such a situation, and return something like "127.0.0.1" if a SocketException were thrown.
– Russ
Sep 1 '16 at 13:38
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Is there a way to instantiate a class by name in Java?
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To make it easier to get the fully qualified name of a class in order to create an instance using Class.forName(...), one could use the Class.getName() method. Something like:
class ObjectMaker {
// Constructor, fields, initialization, etc...
public Object makeObject(Class<?&g...
Include all existing fields and add new fields to document
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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.
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How to create a release signed apk file using Gradle?
...imilar and relative to: $HOME/projects/mydev/MyApp/app/build.gradle. So in order to point to the MyApp-release-key.jks
file, what we need to put here is:
../../../MyApp-release-key.jks
Here, we also chose the "myapp" alias for the key. Then the final file should look:
storePassword=myStorePasswor...
How to printf “unsigned long” in C?
...ifier l, it then accepts an unsigned long int. The letters must be in that order: percent, length, conversion. (There are a few more options, such as width and precision, that you can add. See the man page, as it documents all this precisely!)
– Thanatos
Feb 14...
Retrieve specific commit from a remote Git repository
...nother match would hide it.
We take care to apply the matches in reverse-order from how they are fed to us by the config machinery, as that lets our usual "last one wins" config precedence work (and entries in .git/config, for example, will override /etc/gitconfig).
So you can now do:
git c...
What are transparent comparators?
...en C only needs to be callable with arguments of type T and int (in either order), it doesn't need to be truly transparent. We used that name partly because we couldn't come up with a better name (I would have preferred is_polymorphic because such functors use static polymorphism, but there's alre...
Differences between distribute, distutils, setuptools and distutils2?
...tuptools 0.7 will subsume both distribute and the old setuptools restoring order to the universe. So things actually are set to improve considerably!
– John McDonnell
Jun 5 '13 at 4:27
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What is the curiously recurring template pattern (CRTP)?
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};
template <class T>
T* Singleton<T>::p = nullptr;
Now, in order to make an arbitrary class A a singleton you should do this
class A: public Singleton<A>
{
//Rest of functionality for class A
};
So you see? The singleton template assumes that its specialization for any ty...