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Android global variable
...
You could use application preferences. They are accessible from any activity or piece of code as long as you pass on the Context object, and they are private to the application that uses them, so you don't need to worry about exposing application specific values, unless you deal with...
When to use LinkedList over ArrayList in Java?
.... Javadoc says "operations that index into the list will traverse the list from the beginning or the end, whichever is closer", so those methods are O(n) (n/4 steps) on average, though O(1) for index = 0.
ArrayList<E>, on the other hand, allow fast random read access, so you can grab any elem...
Access index of the parent ng-repeat from child ng-repeat
...t;
<li class="tutorial_title {{tutorial.active}}" ng-click="loadFromMenu(sectionIndex)" ng-repeat="tutorial in section.tutorials">
{{tutorial.name}}
</li>
</ul>
</ul>
Plunker: http://plnkr.co/edit/knwGEnOsAWLhLieKVItS?p=info
...
What is the difference between $(command) and `command` in shell programming?
...need to be seen as deprecated, e.g. the use of waitpid() that prevents you from from seeing the full 32 bits from the exit() parameter, but all shells except the recent Bourne Shell still use waitpid() instead of the waitid() call that is now available since 26 years.
– schily
...
What does enumerate() mean?
...ts counting at 0 but if you give it a second integer argument, it'll start from that number instead:
>>> for count, elem in enumerate(elements, 42):
... print count, elem
...
42 foo
43 bar
44 baz
If you were to re-implement enumerate() in Python, here are two ways of achieving that;...
Getting random numbers in Java [duplicate]
...0 - 49].
int n = rand.nextInt(50);
// Add 1 to the result to get a number from the required range
// (i.e., [1 - 50]).
n += 1;
Another solution is using Math.random():
double random = Math.random() * 49 + 1;
or
int random = (int)(Math.random() * 50 + 1);
...
Why is document.write considered a “bad practice”?
... understand the urge to depend on structure and methods which can keep you from harm, this may be a case of throwing out the baby with the bathwater.
– cgp
Apr 29 '09 at 15:50
7
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Efficient way to rotate a list in python
...ng and pushing on both ends. They even have a dedicated rotate() method.
from collections import deque
items = deque([1, 2])
items.append(3) # deque == [1, 2, 3]
items.rotate(1) # The deque is now: [3, 1, 2]
items.rotate(-1) # Returns deque to original state: [1, 2, 3]
item = i...
How To Accept a File POST
... to build a rest service. I need to be able to accept POSTed images/files from client applications. Is this possible using the webapi? Below is how action I am currently using. Does anyone know of an example how this should work?
...
How to Calculate Execution Time of a Code Snippet in C++
...Time;
uint64 ret = li.QuadPart;
ret -= 116444736000000000LL; /* Convert from file time to UNIX epoch time. */
ret /= 10000; /* From 100 nano seconds (10^-7) to 1 millisecond (10^-3) intervals */
return ret;
#else
/* Linux */
struct timeval tv;
gettimeofday(&tv, NULL);
uint64 ret = tv...