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What is the difference between include and extend in Ruby?
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What you have said is correct. However there is more to it than that.
If you have a class Klazz and module Mod, including Mod in Klazz gives instances of Klazz access to Mod's methods. Or you can extend Klazz with Mod giving the class Klazz...
Why does this Java program terminate despite that apparently it shouldn't (and didn't)?
...le. To achieve immutability, you simply need to mark x and y final.
As a side note and as already mentioned, synchronized(this) {} can be treated as a no-op by the JVM (I understand you included it to reproduce the behaviour).
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What is a .snk for?
...ts of
a simple text name, version number,
and culture information (if
provided)—plus a public key and a
digital signature.
The SNK contains a unique key pair - a private and public key that can be used to ensure that you have a unique strong name for the assembly. When the assembly is strongly-n...
Why does Dijkstra's algorithm use decrease-key?
...stra's beyond what's possible if you keep doing enqueues and dequeues.
Besides this point, some more advanced algorithms, such as Gabow's Shortest Paths Algorithm, use Dijkstra's algorithm as a subroutine and rely heavily on the decrease-key implementation. They use the fact that if you know the r...
When do I need to use a semicolon vs a slash in Oracle SQL?
...one) tool to execute SQL scripts - and the "correctness" of a script is validated using that tool. Similar to having one compiler for your programming language or one specific version of your runtime environment (Java 7, .Net 4.0, PHP 5.x, ...)
– a_horse_with_no_name
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using gitignore to ignore (but not delete) files
...ing your changes will apply the removal. I don't think there's a way to avoid that from your own repository. You must do something on the other repositories, or accept the files will be removed.
To prevent the removal on each other repository you can:
(obviously) backup the files somewhere, pull ...
What's the difference between an exclusive lock and a shared lock?
...ad threads to wait when write thread is started waiting? Because how to avoid starvation of write thread because of continuous read request?
– Kanagavelu Sugumar
Jun 22 '16 at 12:31
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What is the most effective way for float and double comparison?
... in my code, difference between the original expected value and the parsed string.
– mwpowellhtx
Jan 20 '19 at 17:31
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Difference between size_t and std::size_t
...ence. I still think your first comment is too strong though; as you just said, ::size_t is present e.g in <stddef.h>, so you don't always need to qualify it with std::.
– Ben Hymers
Jul 31 '13 at 8:28
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What is the purpose of AsQueryable()?
...ust use AsQueryable on all enumerables to use them. This allows you to avoid writing two separate versions of very generalized helper methods.
It allows you to change the compile time type of a queryable to be an IQueryable, rather than some more derived type. In effect; you'd use it on an IQuerya...