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What version of javac built my jar?
....org/wiki/Java_class_file
Note: As mentioned in the comment below,
those bytes tell you what version the class has been compiled FOR, not
what version compiled it.
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Intelligent point label placement in R
... problem:
I did this by hand in Preview (very basic PDF/image viewer on OS X) in just a few minutes. (Edit: The workflow was exactly what you'd expect: I saved the plot as a PDF from R, opened it in Preview and created textboxes with the desired labels (9pt Helvetica) and then just dragged them a...
Difference between CLOCK_REALTIME and CLOCK_MONOTONIC?
..., CLOCK_MONOTONIC does not measure time spent in suspend, although by the POSIX definition it should. You can use the Linux-specific CLOCK_BOOTTIME for a monotonic clock that keeps running during suspend.
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How can a web application send push notifications to iOS devices? [closed]
I'm working on a web app. How can I send push notifications to iOS users when there is new content?
11 Answers
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Default value of BOOL
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I did some experiments of my own using Xcode 5.1, OS X Mavericks 10.9.4. For those who don’t know ALog is a modified NSLog. Anyway, first experiment was to use isLandscape as a public variable, with @synthesize, to be accessed by parent view controller (displayed below). S...
CSS to set A4 paper size
...e problem in Chrome (tested in different versions of Chrome under Windows, OS X and Ubuntu).
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Can I change the checkbox size using CSS?
Is it possible to set the size of a checkbox using CSS or HTML across browsers?
15 Answers
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java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
...from internet. In the onPreExecute() method I add a Fragment and in the onPostExecute() method I remove it again. When the orientation is changed in between, I get the above mentioned exception. Please take a look at the details:
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Creating a left-arrow button (like UINavigationBar's “back” style) on a UIToolbar
...ows by googling either Unicode Triangles or Unicode Arrows. Starting with iOS6 Apple changed the character to be an emoji character with a border. To disable the border I add the 0xFE0E Unicode Variation Selector.
NSString *backArrowString = @"\U000025C0\U0000FE0E"; //BLACK LEFT-POINTING TRIANGLE ...
What is thread contention?
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This answer is incomplete (as are most of the others). While a lock is one type of thing that there can be contention over, it is far from the only such thing. There can be contention for lockless resources as well. (For example, if two threads keep atomically...