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When to use LinkedList over ArrayList in Java?
...wo additional pointers and each node is a separate wrapper object with the extra overhead bytes that go with them).
– Kevin Brock
Mar 23 '10 at 0:46
43
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What does [:] mean?
...he type of population. If population is a list, this line will create a shallow copy of the list. For an object of type tuple or a str, it will do nothing (the line will do the same without [:]), and for a (say) NumPy array, it will create a new view to the same data.
...
How to get a Fragment to remove itself, i.e. its equivalent of finish()?
...er {
// onCreate etc
@Override
public void onFragmentSuicide(String tag) {
// Check tag if you do this with more than one fragmen, then:
getSupportFragmentManager().popBackStack();
}
}
public interface SuicidalFragmentListener {
void onFragmentSuicide(String ta...
When do you use Git rebase instead of Git merge?
... (one will have branches, the other won't).
Merge will generally create an extra commit (e.g. node in the tree).
Merge and rebase will handle conflicts differently. Rebase will present conflicts one commit at a time where merge will present them all at once.
So the short answer is to pick rebase ...
Right HTTP status code to wrong input
...efined by the response Content-Type.
In my case, I would like to PUT a string, that must be unique, to a database via an API. Before adding it to the database, I am checking that it is not already in the database.
If it is, I will return "Error: The string is already in the database", 409.
I b...
Xcode 5.1 - No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=i
...from the workspace in the left pane of Xcode and close Xcode.
Run "pod install" from the command line to recreate the "Pods" project.
Re-open Xcode and make sure "Build Active Architecture Only" is set to "No" in the build settings of both the "Pods" project and your own project.
Clean and build.
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Get file size, image width and height before upload
...ileReader API
In case you need images sources as long Base64 encoded data strings
<img src="data:image/png;base64,iVBORw0KGg... ...lF/++TkSuQmCC=">
const EL_browse = document.getElementById('browse');
const EL_preview = document.getElementById('preview');
const readImage = file ...
Twitter image encoding challenge [closed]
... handling. It also requires the GMP library for bignum arithmetic for its string encoding.
I based my solution off of fractal image compression, with a few unique twists. The basic idea is to take the image, scale down a copy to 50% and look for pieces in various orientations that look similar to...
Qt: can't find -lGL error
I just reinstalled QtCreator, created new project ( Qt Application ) an got this after compilation:
8 Answers
...
How can Perl's print add a newline by default?
...necessarily verbose. There's no need to separate the newline into its own string. This is sufficient.
print "hello.\n";
This realization will probably make your coding easier in general.
In addition to using use feature "say" or use 5.10.0 or use Modern::Perl to get the built in say feature, I...