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How to check if an object implements an interface? [duplicate]
...ike this public void doSomething(Serializable serializableObject). You can now pass it any object that implements Serializable but using the serializableObject you only have access to the methods implemented in the object from the Serializable interface.
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What is the difference between MVC and MVVM? [closed]
...s from.
ViewModels hold a certain shape of data and commands, they do not know where the data, or code, comes from or how it is displayed.
Models hold the actual data (various context, store or other methods)
Controllers listen for, and publish, events. Controllers provide the logic that controls wh...
Differences between Perl and PHP [closed]
I'm planning to learn Perl 5 and as I have only used PHP until now, I wanted to know a bit about how the languages differ from each other.
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C default arguments
... double x_out = in.x ? in.x : 3.14;
return f_base(i_out, x_out);
}
Now add a macro, using C's variadic macros. This way users don't have to know they're
actually populating a f_args struct and think they're doing the usual:
#define f(...) var_f((f_args){__VA_ARGS__});
OK, now all of the f...
What is hashCode used for? Is it unique?
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The quote from the MSDN is now out-of-date. The MSDN is now not as explicit about the hash code not being unique.
– user34660
Dec 26 '17 at 22:11
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INNER JOIN vs LEFT JOIN performance in SQL Server
... LEFT JOIN because the performance of LEFT JOIN is better, despite what I know. After I changed it, the speed of query got significantly improved.
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git + LaTeX workflow
...ized part of your work, and it is also easier for version control, as you know what changes have been made to each chapter, instead of having to figure it out from the logs of one big file.
Using Git efficiently:
Use branches!. There is perhaps no better advice I can give. I've found branches to ...
What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
... is to work on 32-bit numbers, it's not going to be faster than one cycle. Now, although it is not so on x86/amd64, 32-bit integers may not be even addressable. In such a case working on them requires additional ops to extract the 32-bits from, say, 64-bit aligned units. See also the linked question...
Android Camera Preview Stretched
...and the set the measured dimension accordingly.
And the next thing you know, you end up with this :D
This also works well with he front camera. I believe this is the best way to go about this. Now the only thing left for my app is to save the preview itself upon clicking on "Capture." But ya, ...
How to stop and restart memcached server?
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Note that services is now considered an external tool to brew. apple.stackexchange.com/questions/150300/…
– Kirby
May 6 '15 at 21:54
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