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.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
... the result may be different.
Benchmark results (score in microseconds, smaller = better):
Benchmark (n) Mode Samples Score Error Units
c.a.p.SO29378922.preSize 1 avgt 30 0.025 ▒ 0.001 us/op
c.a.p.SO29378922.preSize 100 avgt 30 0.15...
Build Eclipse Java Project from Command Line
...ore.aptBuild
It uses the jdt apt plugin to build your workspace automatically. This is also known as a 'Headless Build'. Damn hard to figure out. If you're not using a win32 exe, you can try this:
java -cp startup.jar -noSplash -data "D:\Source\MyProject\workspace" -application org.eclipse.jdt....
Linux - Replacing spaces in the file names
...umber of files in a folder, and I want to replace every space character in all file names with underscores. How can I achieve this?
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Requirejs domReady plugin vs Jquery $(document).ready()?
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It seems like all the key points were already hit, but a few details fell through the cracks. Mainly:
domReady
It is both a plugin and a module. If you include it in the the requirements array w/ a trailing ! your module won't execute un...
StringBuilder vs String concatenation in toString() in Java
...o builder?
At the point where you're concatenating in a loop - that's usually when the compiler can't substitute StringBuilder by itself.
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Explaining Python's '__enter__' and '__exit__'
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Using these magic methods (__enter__, __exit__) allows you to implement objects which can be used easily with the with statement.
The idea is that it makes it easy to build code which needs some 'cleandown' code executed (think of it as a try-finally block). Some more ex...
Create list of single item repeated N times
I want to create a series of lists, all of varying lengths. Each list will contain the same element e , repeated n times (where n = length of the list).
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How to set environment variables in Jenkins?
...ajorVersion" | python -c 'import sys,re,os; print("VERSION_NUMBER="+re.findall(r"[\d+\.]+", sys.stdin.read())[0]+os.environ["BUILD_NUMBER"])'
– kenny_k
Jun 19 '15 at 6:52
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Sql query to insert datetime in SQL Server
... I used the SQL query below to test the format, and it does indeed work in all SQL languages in sys.syslanguages:
declare @sql nvarchar(4000)
declare @LangID smallint
declare @Alias sysname
declare @MaxLangID smallint
select @MaxLangID = max(langid) from sys.syslanguages
set @LangID = 0
while @...
Execution time of C program
I have a C program that aims to be run in parallel on several processors. I need to be able to record the execution time (which could be anywhere from 1 second to several minutes). I have searched for answers, but they all seem to suggest using the clock() function, which then involves calculating...