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How to implement the Android ActionBar back button?
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In my situation I was looking for a way to not call onCreate of the parent when returning to it. To do this, I used your implementation, but called finish() instead of NavUtils.navigateUpFromSameTask(this). finish() calls my onStart instead of onCreate which was more ideal...
What is the difference between atomic and critical in OpenMP?
...(on top of the inherent cost of serialization).
(In addition, in OpenMP all unnamed critical sections are considered identical (if you prefer, there's only one lock for all unnamed critical sections), so that if one thread is in one [unnamed] critical section as above, no thread can enter any [un...
What's the point of JAXB 2's ObjectFactory classes?
..., sometimes you need to create actual JAXBElement objects. They are not usually trivial to create by hand, so the create* methods do the hard work for you. Example (from the XHTML 1.1 schema):
@XmlElementDecl(namespace = "http://www.w3.org/1999/xhtml", name = "style", scope = XhtmlHeadType.class)
p...
Java RegEx meta character (.) and ordinary dot?
... match 1.50$, -2.00$ etc. and [(){}[\]] for a character class that matches all kinds of brackets/braces/parentheses.
If you need to transform a user input string into a regex-safe form, use java.util.regex.Pattern.quote.
Further reading: Jan Goyvaert's blog RegexGuru on escaping metacharacters
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What is a pre-revprop-change hook in SVN, and how do I create it?
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Basically it's a script that is launched before unversioned property is modified on the repository, so that you can manage more precisely what's happening on your repository.
There are templates in the SVN distrib for different h...
Why is the minimalist, example Haskell quicksort not a “true” quicksort?
... two beautiful aspects:
Divide and conquer: break the problem into two smaller problems.
Partition the elements in-place.
The short Haskell example demonstrates (1), but not (2). How (2) is done may not be obvious if you don't already know the technique!
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How to write a caption under an image?
...line-block;
}
figcaption {
margin: 10px 0 0 0;
font-variant: small-caps;
font-family: Arial;
font-weight: bold;
color: #bb3333;
}
figure {
padding: 5px;
}
img:hover {
transform: scale(1.1);
-ms-transform: scale(1.1);
-webkit-transform: scale(1.1);
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Java String - See if a string contains only numbers and not letters
...ic class StringIsNumberBenchmark {
private static final long CYCLES = 1_000_000L;
private static final String[] STRINGS = {"12345678901","98765432177","58745896328","35741596328", "123456789a1", "1a345678901", "1234567890 "};
private static final Pattern PATTERN = Pattern.compile("\\d+")...
How to split a file into equal parts, without breaking individual lines? [duplicate]
...s wondering if it was possible to split a file into equal parts ( edit: = all equal except for the last), without breaking the line? Using the split command in Unix, lines may be broken in half. Is there a way to, say, split up a file in 5 equal parts, but have it still only consist of whole lines ...
Detect if a page has a vertical scrollbar?
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I have report page on Chrome browser where it initially displays a scroll bar and vanishes in a matter of milliseconds which looks like a browser behaviour since I did not programme it. So this function return true always in my case..
– Dush
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