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When do I need to use AtomicBoolean in Java?
...initStarted and initCompleted, then the first thread sets initStarted and calls initialise(), the rest wait until initCompleted is true.
– Martin
Dec 21 '10 at 17:32
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How can I check if a method is static using reflection?
...return Collections.unmodifiableList(methods);
}
Note: This method is actually dangerous from a security standpoint. Class.getMethods "bypass[es] SecurityManager checks depending on the immediate caller's class loader" (see section 6 of the Java secure coding guidelines).
Disclaimer: Not tested or...
How does the Brainfuck Hello World actually work?
...ad a decimal ASCII code 97 to memory:
...[0][0][*97*][0][0]...
You generally want to think that way, however the truth is a bit more complex. The truth is BF does not read a character but a byte (whatever that byte is). Let me show you example:
In linux
$ printf ł
prints:
ł
which is spec...
Maven project version inheritance - do I have to specify the parent version?
...most cases. Moreover, this parent's version declaration is bumped automatically by Maven Release Plugin, so - in fact - it's not a problem that you have version in 2 places as long as you use Maven Release Plugin for releasing or just bumping versions.
Notice that there are some cases when this beh...
Python try…except comma vs 'as' in except
...s not required, since you don't have to specify it if you don't need it at all.
– mercator
Apr 13 '15 at 13:20
add a comment
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How to Rotate a UIImage 90 degrees?
...nt to use a CGAffineTransform . I want the pixels of the UIImage to actually shift position. I am using a block of code (shown below) originally intended to resize a UIImage to do this. I set a target size as the current size of the UIImage but I get an error:
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Is there a way to list open transactions on SQL Server 2000 database?
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For all databases query sys.sysprocesses
SELECT * FROM sys.sysprocesses WHERE open_tran = 1
For the current database use:
DBCC OPENTRAN
share
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What does dot (.) mean in a struct initializer?
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This is a C99 feature that allows you to set specific fields of the struct by name in an initializer. Before this, the initializer needed to contain just the values, for all fields, in order -- which still works, of course.
So for the following struc...
AI2 SideBar Extension
Deutsche Version Motivation With smaller apps, the implemented functions can be triggered by a button. With larger apps, however, the available space quickly decreases and the layout becomes confusing. A side bar can help here. There are a number of implementations, but I haven't found a su...
How do I change the highlight style in Vim spellcheck?
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@ZyX: I don't know, was just wondering. All of mine show it as ---- too, but it just seemed logical that changing to squiggly should just involve replacing - with ~, but I could be wrong there.
– abcd
May 18 '11 at 19:41
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