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How does “cat
...to provide a string into stdin. See https://en.wikipedia.org/wiki/Here_docum>me m>nt#Unix_shells for more details.
From man bash:
Here Docum>me m>nts
This type of redirection instructs the shell to read input from
the current source until a line
containing only word (with no trailing
blanks)...
What Automatic Resource Managem>me m>nt alternatives exist for Scala?
I have seen many examples of ARM (automatic resource managem>me m>nt) on the web for Scala. It seems to be a rite-of-passage to write one, though most look pretty much like one another. I did see a pretty cool example using continuations, though.
...
Difference between == and ===
...s are equal, "equal to"
=== operator checks if the references point the sam>me m> instance, "identical to"
Long Answer:
Classes are reference types, it is possible for multiple constants and variables to refer to the sam>me m> single instance of a class behind the scenes. Class references stay in Run Tim>me m> ...
Tim>me m>out on a function call
I'm calling a function in Python which I know may stall and force m>me m> to restart the script.
18 Answers
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Array versus List: When to use which?
... that you would want to use an array. Definitely use a List<T> any tim>me m> you want to add/remove data, since resizing arrays is expensive. If you know the data is fixed length, and you want to micro-optimise for som>me m> very specific reason (after benchmarking), then an array may be useful.
List&l...
Why is quicksort better than m>me m>rgesort?
...erview. They're both O(nlogn) and yet most people use Quicksort instead of m>Me m>rgesort. Why is that?
29 Answers
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Dynamically Changing log4j log level
...ation the configuration will be read and used as setting the level at runtim>me m> does not persist the level change.
UPDATE: If you are using Log4j 2 you should remove the calls to setLevel per the docum>me m>ntation as this can be achieved via implem>me m>ntation classes.
Calls to logger.setLevel() or simil...
Removing fields from struct or hiding them in JSON Response
... specific fields they would like returned by passing in a "fields" GET param>me m>ter.
12 Answers
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Write a program to find 100 largest numbers out of an array of 1 billion numbers
...e new number to the queue.
EDIT:
as Dev noted, with a priority queue implem>me m>nted with a heap, the complexity of insertion to queue is O(logN)
In the worst case you get billionlog2(100) which is better than billionlog2(billion)
In general, if you need the largest K numbers from a set of N numbers,...
How do I address unchecked cast warnings?
Eclipse is giving m>me m> a warning of the following form:
23 Answers
23
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