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Is the != check thread safe?
...n a != a;
}
may produce true. This is the bytecode for test()
ALOAD 0
GETFIELD test/Test1.a : Ljava/lang/Object;
ALOAD 0
GETFIELD test/Test1.a : Ljava/lang/Object;
IF_ACMPEQ L1
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as we can see it loads field a to local vars twice, it's a non-atomic operation, if a was cha...
Is it better practice to use String.format over string Concatenation in Java?
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250
I'd suggest that it is better practice to use String.format(). The main reason is that String.fo...
Removing an element from an Array (Java) [duplicate]
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Abhijeet
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answered Mar 13 '09 at 21:40
Peter LawreyPeter ...
How to fix error “Updating Maven Project”. Unsupported IClasspathEntry kind=4?
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This issue has been fixed in m2e 1.5.0 which is available for Eclipse Kepler (4.3) and Luna (4.4)
Please see https://bugs.eclipse.org/bugs/show_bug.cgi?id=374332#c14
The problem is caused by the fact that STS (the Spring IDE/Eclipse), as well Eclipse and other...
Call Javascript function from URL/address bar
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edited Feb 10 '15 at 18:10
davmac
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a...
Extract month and year from a zoo::yearmon object
...ere is your example date (properly created!)
date1 <- as.yearmon("Mar 2012", "%b %Y")
Then we can extract the date parts as required:
> format(date1, "%b") ## Month, char, abbreviated
[1] "Mar"
> format(date1, "%Y") ## Year with century
[1] "2012"
> format(date1, "%m") ## numeric mon...
Create a CSV File for a user in PHP
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280
Try:
header("Content-type: text/csv");
header("Content-Disposition: attachment; filename=file.c...
Get fragment (value after hash '#') from a URL in php [closed]
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10 Answers
10
Active
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Android, ListView IllegalStateException: “The content of the adapter has changed but ListView did no
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120
I had the same issue.
I was adding items to my ArrayList outside the UI thread.
Solution: I ha...
Rails 4: assets not loading in production
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105
In rails 4 you need to make the changes below:
config.assets.compile = true
config.assets.prec...