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How do I get an empty array of any size in python?
...the incorrect, however. I prefer it to a = range(N) because every element starts out at a sensible "default". I guess it's a matter of opinion.
– dappawit
Mar 5 '11 at 21:03
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How to convert date to timestamp?
...the right order, you'd be defining the date March 26th, 2012 (month values start at zero). But as the OP has a string, not a series of numbers, it's not all that useful even if you addressed those issues.
– T.J. Crowder
Mar 26 '12 at 14:04
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What are Runtime.getRuntime().totalMemory() and freeMemory()?
...mory(). The answer is that the JVM allocates memory lazily. Lets say you start your Java process as such:
java -Xms64m -Xmx1024m Foo
Your process starts with 64mb of memory, and if and when it needs more (up to 1024m), it will allocate memory. totalMemory() corresponds to the amount of memory ...
'printf' vs. 'cout' in C++
...<ctime>
class TimedSection {
char const *d_name;
timespec d_start;
public:
TimedSection(char const *name) :
d_name(name)
{
clock_gettime(CLOCK_REALTIME, &d_start);
}
~TimedSection() {
timespec end;
...
How to force maven update?
I imported my already working project on another computer and it started to download dependencies.
25 Answers
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Multiprocessing vs Threading Python [duplicate]
...nthreads]
for thread_class, work_size in input_params:
start_time = time.time()
threads = []
for i in range(nthreads):
thread = thread_class(work_size)
threads.append(thread)
thread.start()
for i,...
Any way to write a Windows .bat file to kill processes? [closed]
...line per process you want to kill, save it as a .bat file, and add in your startup directory. Problem solved!
If this is a legacy system, PsKill will do the same.
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How to check whether a file is empty or not?
...en at this point.. now what?
... my_file.seek(0) #ensure you're at the start of the file..
... first_char = my_file.read(1) #get the first character
... if not first_char:
... print "file is empty" #first character is the empty string..
... else:
... my_file.seek(0) #...
What is “lifting” in Haskell?
...e have liftFoo3, liftFoo4 and so on. However this is often not necessary.
Start with the observation
liftFoo1 :: (a -> b) -> Foo a -> Foo b
But that is exactly the same as fmap. So rather than liftFoo1 you would write
instance Functor Foo where
fmap f foo = ...
If you really want ...
How to highlight cell if value duplicate in same column for google spreadsheet?
...rn its content. In this case, the current cell's content. Then back to the start, COUNTIF() will test every cell in the range against ours, and return the count.
The last step is making our formula return a boolean, by making it a logical expression: COUNTIF(...) > 1. The > 1 is used because ...