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Covariance, Invariance and Contravariance explained in plain English?
...In Java, arrays are covariant)
This was still rather abstract. To make it more concrete, let's look at which operations in Java are defined in terms of the subtype relation. The simplest example is assignment. The statement
x = y;
will compile only if typeof(y) ≤ typeof(x). That is, we have j...
Why main does not return 0 here?
... eax register. See en.wikipedia.org/wiki/X86_calling_conventions#cdecl for more information.
– Sylvain Defresne
Dec 30 '11 at 10:04
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Describe the architecture you use for Java web applications? [closed]
...sines model knowledge, and the DAO's do relatively simple CRUD work.
Some more complicated query stuff is handled by more complicated queries in the backend for performance reasons.
Advantages of using Spring in our case is that we can have country/language dependant instances, which are behind a ...
Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign
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how do i block or restrict special characters from input fields with jquery?
...searching the issue and will update my answer or comment here when I learn more.
– rexmac
Mar 19 '15 at 23:23
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fork() branches more than expected?
...-generation process. fork() doesn't create 2 then exit, it only creates 1 more process.
– Izkata
Jun 21 '12 at 15:45
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What's the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN and FULL JOIN? [duplicate]
...sentation of projection therefore cannot be joins. I think it will confuse more than benefit when the context is joins.
– onedaywhen
Sep 9 '11 at 11:02
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Choosing a Java Web Framework now? [closed]
...l not convinced (maybe I don't get it), I'm not sure of its maturity, and, more important, I'm really wondering what SpringSource is doing with Grails and Roo (no, Grails vs Roo - why SpringSource is pushing two very similar technologies? doesn't convince me that they will both survive).
I can't sa...
What's the difference between “STL” and “C++ Standard Library”?
...e separate and that there are some differences. These differences are even more pronounced in the upcoming new C++ standard, which includes various features and significantly alters some classes.
The original STL is now often called "an implementation of the C++ Standard Template Library" (rather b...
How well is Unicode supported in C++11?
...ink all but the first one provide terrible support. I'll get back to it in more detail after a quick detour through your other questions.
Does std::string do what it should?
Yes. According to the C++ standard, this is what std::string and its siblings should do:
The class template basic_s...