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Use of Initializers vs Constructors in Java
...kills as of late and have found a few bits of functionality that I didn't know about previously. Static and Instance Initializers are two such techniques.
...
Code Golf: Lasers
... $_.
$s="#";
$s is the symbol of whatever the beam is sitting on top of now. Since the laser emitter is to be treated like a wall, set this to be a wall to begin with.
if (tr/v<^/>v</) {
my $o;
$o .= "\n" while s/.$/$o .= $&, ""/meg;
tr,/\\,\\/, for $o, $s;
$_ = $o;
}
If t...
Entity Framework: One Database, Multiple DbContexts. Is this a bad idea? [closed]
... @PiotrKwiatek Not sure if this changed between your comment and now, but Enable-Migrations -ContextTypeName MyContext -MigrationsDirectory Migrations\MyContextMigrations works now.
– Zack
Aug 10 '15 at 15:30
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Setting Environment Variables for Node to retrieve
...ID and USER_KEY from either process.env or some specificed file on disk.
Now, the magic happens when you run the application.
USER_ID=239482 USER_KEY=foobar node app.js
That will pass the user id 239482 and the user key as foobar. This is suitable for testing, however for production, you will pr...
iOS: UIButton resize according to text length
...
In Xcode 4.5 and above, this can now be done by using 'Auto-layouting / Constraints'.
Major advantages are that:
You don't need to programmatically set frames at all!
If done right, you don't need to bother about resetting frames for orientation changes....
How can I get the list of files in a directory using C or C++?
...Ronkko. In Unix, it is a standard header.
UPDATE 2017:
In C++17 there is now an official way to list files of your file system: std::filesystem. There is an excellent answer from Shreevardhan below with this source code:
#include <string>
#include <iostream>
#include <filesystem>...
Where is the itoa function in Linux?
...intf(target_string, size_of_target_string_in_bytes, "%d", source_int). I know it's not quite as concise or cool as itoa(), but at least you can Write Once, Run Everywhere (tm) ;-)
Here's the old (edited) answer
You are correct in stating that the default gcc libc does not include itoa(), like sev...
CSS Div stretch 100% page height
...of the HTML box. You can also use height:100% on the cloud-container as it now refers to the height of the HTML tag and not the viewport.
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How to unit test abstract classes: extend with stubs?
... then become implementations of this new interface.
This means you can now test your previously abstract class using a mock instance of the new interface, and each new implementation through the now public interface. Everything is simple and testable.
Solution For 2
If you have the second si...
How did Google manage to do this? Slide ActionBar in Android application
... to implement this (the side navigation) in an app of my own, does anyone know how Google managed to do this?
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