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Retrieve a Fragment from a ViewPager
...ble. Fragments that have not yet been instantiated, will return null when calling getRegisteredFragment. But I've been using this mostly to get the current Fragment out of the ViewPager: adapater.getRegisteredFragment(viewPager.getCurrentItem()) and this won't return null.
I'm not aware of any othe...
What is a good Java library to zip/unzip files? [closed]
... zipFile.setPassword(password);
}
zipFile.extractAll(destination);
} catch (ZipException e) {
e.printStackTrace();
}
}
The Maven dependency is:
<dependency>
<groupId>net.lingala.zip4j</groupId>
<artifactId>zip4j</artifac...
Why do I need to do `--set-upstream` all the time?
...he one at origin in the same way as git branch --set-upstream does.
Personally, I think it's a good thing to have to set up that association between your branch and one on the remote explicitly. It's just a shame that the rules are different for git push and git pull.
1 It may sound silly, but ...
Declaring and initializing variables within Java switches
...
Switch statements are odd in terms of scoping, basically. From section 6.3 of the JLS:
The scope of a local variable declaration in a block (§14.4) is the rest of the block in which the declaration appears, starting with its own initializer and including any further decla...
Better way of getting time in milliseconds in javascript?
...y Date.now().
The skipping is most likely due to garbage collection. Typically garbage collection can be avoided by reusing variables as much as possible, but I can't say specifically what methods you can use to reduce garbage collection pauses.
...
File extension for PowerShell 3
All of us probably know .bat for Batch files.
1 Answer
1
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Chrome: timeouts/interval suspended in background tabs?
...ted) setTimeout is not very accurate but for most appliances not dramatically inaccurate. Now if I run the test in in Chrome and let it run in a background tab (so, switching to another tab and browse on there), returning to the test and inspecting te results (if the test finished) they are dramat...
'const string' vs. 'static readonly string' in C#
...e private const for values that aren't, strictly speaking, constants; basically it's misusing const for micro-optimisation purposes. I'm going to stand by my "never, ever, ever" statement, even if it makes me a hypocrite. ;)
– LukeH
Nov 18 '12 at 1:32
...
Setting an object to null vs Dispose()
...When you write a using statement, it's simply syntactic sugar for a try/finally block so that Dispose is called even if the code in the body of the using statement throws an exception. It doesn't mean that the object is garbage collected at the end of the block.
Disposal is about unmanaged resourc...
Under what conditions is a JSESSIONID created?
...s created/sent when session is created. Session is created when your code calls request.getSession() or request.getSession(true) for the first time. If you just want to get the session, but not create it if it doesn't exist, use request.getSession(false) -- this will return you a session or null. In...