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Python creating a dictionary of lists
...
You can use defaultdict:
>>> from collections import defaultdict
>>> d = defaultdict(list)
>>> a = ['1', '2']
>>> for i in a:
... for j in range(int(i), int(i) + 2):
... d[j].append(i)
...
>>> d
defaultdict(<t...
Rotating a point about another point (2D)
...inate system on the screen is left-handed, i.e. the x coordinate increases from left to right and the y coordinate increases from top to bottom. The origin, O(0, 0) is at the upper left corner of the screen.
A clockwise rotation around the origin of a point with coordinates (x, y) is given by the...
string.split - by multiple character delimiter
...e are both characters right? What if I want to split by either "[" or "]"? From my tests so far I guess thats a different story, right?
– C4d
Mar 7 '16 at 15:28
3
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What's the main difference between Java SE and Java EE? [duplicate]
...t has JSP (Java Server Pages) which is a templating language that compiles from JSP to a Java servlet where it can be run by the container.
So Java EE is more or less Java SE + Enterprise platform technologies.
Java EE is far more than just a couple of extra libraries (that is what I thought when ...
Setting Short Value Java
... specifically cast 0 as (short)0 to get around a possible lossy conversion from int to short error, even though 0 is a short.
– ryvantage
Oct 27 '16 at 1:55
...
Backing beans (@ManagedBean) or CDI Beans (@Named)?
...ebFilter, @WebServlet, @Path, @Stateless, etc and even a JSF @ManagedBean. From the other side on, @ManagedProperty does not work inside a @Named or any other container managed artifact. It works really only inside @ManagedBean.
Another difference is that CDI actually injects proxies delegating to t...
Angular directives - when and how to use compile, controller, pre-link and post-link [closed]
...etween these function calls?
The various directive functions are executed from within two other angular functions called $compile (where the directive's compile is executed) and an internal function called nodeLinkFn (where the directive's controller, preLink and postLink are executed). Various thi...
How to un-commit last un-pushed git commit without losing the changes
...will be in your working directory, whereas the LAST commit will be removed from your current branch. See git reset man
In case you did push publicly (on a branch called 'master'):
git checkout -b MyCommit //save your commit in a separate branch just in case (so you don't have to dig it from refl...
Why doesn't Haskell's Prelude.read return a Maybe?
... good news is that folks were sufficiently convinced to start moving away from fail in the libraries. The bad news is that the proposal got lost in the shuffle. There should be such a function, although one is easy to write (and there are zillions of very similar versions floating around many codeb...
Programmatically set left drawable in a TextView
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From here I see the method setCompoundDrawablesWithIntrinsicBounds(int,int,int,int) can be used to do this.
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