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How to change Vagrant 'default' machine name?
... vb.name = "barhost"
end
end
So there it is. You now know 3 different options you can set and the effects they have. I guess it's a matter of preference at this point? (I'm new to Vagrant, so I can't speak to best practices yet.)
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CSV API for Java [closed]
...kipedia.org/wiki/Comma-separated_values
Wikipedia lists 10 or something known libraries:
http://en.wikipedia.org/wiki/CSV_application_support
I compared libs listed using some kind of check list. OpenCSV turned out a winner to me (YMMV) with the following results:
+ maven
+ maven - release v...
Run all SQL files in a directory
...:\Scripts\script1.sql
:r c:\Scripts\script2.sql
:r c:\Scripts\script3.sql
Now execute
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Rolling or sliding window iterator?
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Nice answer, but (and I know you're just reproducing the recipe as linked), I wonder why the default window size should be 2? Should it have a default at all?
– SingleNegationElimination
Jul 25 '11 at 22:02
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JFrame in full screen Java
...ay need to set DisplayMode.BIT_DEPTH_MULTI and DisplayMode.REFRESH_RATE_UNKNOWN when applying a new display mode. I didn't have to use setExtendedState. Tested working using Kubuntu 15.10 with Java 8.
– code_dredd
Jan 16 '16 at 20:54
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Message Queue vs Message Bus — what are the differences?
And are there any? To me, MB knows both subscribers and publishers and acts as a mediator, notifying subscribers on new messages (effectively a "push" model). MQ, on the other hand, is more of a "pull" model, where consumers pull messages off a queue.
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Why does volatile exist?
... in straight C. We used a hardware managed 16 bit value as a semaphore to know when the other guy was done. Essentially we did this:
void waitForSemaphore()
{
volatile uint16_t* semPtr = WELL_KNOWN_SEM_ADDR;/*well known address to my semaphore*/
while ((*semPtr) != IS_OK_FOR_ME_TO_PROCEED);
}...
puts vs logger in rails rake tasks
...
Rake tasks are run by a user, on a command-line. Anything they need to know right away ("processed 5 rows") should be output on the terminal with puts.
Anything that needs to be kept for posterity ("sent warning email to jsmith@example.com") should be sent to the Rails.logger.
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Is there a way for non-root processes to bind to “privileged” ports on Linux?
...NET_BIND_SERVICE capability. setcap is in the debian package libcap2-bin.
Now for the caveats:
You will need at least a 2.6.24 kernel
This won't work if your file is a script. (ie, uses a #! line to launch an interpreter). In this case, as far I as understand, you'd have to apply the capability t...
File I/O in Every Programming Language [closed]
...e should ever write readlines()[1] in example code. In this case you may know the file only has two lines, but someone else blithely assuming it's a good solution might try it on a million-line file and get a rather nasty surprise.
– Porculus
Aug 21 '10 at 20:...