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Difference between Arrays.asList(array) and new ArrayList(Arrays.asList(array))
...operations aren't allowed on the wrapper, like adding or removing elements from the list, you can only read or overwrite the elements.
Note that the list wrapper doesn't extend ArrayList - it's a different kind of object. ArrayLists have their own, internal array, in which they store their elements...
How to use WeakReference in Java and Android development?
...ence to an object, but you don't want that reference to protect the object from the garbage collector. A classic example is a cache that you want to be garbage collected when memory usage gets too high (often implemented with WeakHashMap).
Be sure to check out SoftReference and PhantomReference as...
Reducing memory usage of .NET applications?
...tions per se, but you might take a look at the CLR Profiler (free download from Microsoft).
Once you've installed it, take a look at this how-to page.
From the how-to:
This How To shows you how to use the
CLR Profiler tool to investigate your
application's memory allocation
profile. You ...
LaTeX table positioning
... paragraph. I want the 4 tables to appear between the two paragraphs which from what I've read means I should use the [h] option after beginning the table environment (e.g. \begin{table}[h] ).
...
How can I validate a string to only allow alphanumeric characters in it?
...to be Unicode "letters". If this is your intention, then fine, but judging from the various regex expressions in the other answers, this is likely not what most considered to be alpha[numeric].
– Dono
Feb 20 '14 at 5:57
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Should I use tag for icons instead of ? [closed]
... ("Here at Twitter, this is what we call a reply arrow.") And it is a term from another language: a symbolic language.
If, instead of the arrow symbol, Twitter used <i>shout out</i> or <i>[Japanese character for reply]</i> (on an English page), that would be consistent with...
For each row in an R dataframe
...
Even if you pull it from a database, you can pull them all at once and then filter the result in R; that will be faster than an iterative function.
– Shane
Nov 10 '09 at 3:13
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How does Go update third-party packages?
...
A use case being: I just want to update all my packages that are obtained from the Github VCS, then you would just say:
go get -u github.com/... // ('...' being the wildcard).
This would go ahead and only update your github packages in the current $GOPATH
Same applies for within a VCS too, sa...
How to change the status bar color in Android?
...on device pre-lollipop thanks to the library support-v7-appcompat starting from version 21. Blogpost about support appcompat v21 from Chris Banes
Read more about the Material Theme on the official Android Developers website
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How do I update my bare repo?
...
If you want to duplicate all the objects from the main repo, do this inside the main repo:
git push --all <url-of-bare-repo>
Alternatively, do a fetch inside the bare repo:
git fetch <url-of-main-repo>
You cannot do a pull, because a pull wants to ...