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How can I count the number of matches for a regex?
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Solution for Java 8 and older
You'll have to do the following. (Starting from Java 9, there is a nicer solution)
int count = 0;
while (matcher.find())
count++;
Btw, matcher.groupCount() is something completely different.
Complete example:
import java.util.regex.*;
class Test {
public...
How does Google calculate my location on a desktop?
... And if I go and try trace my IP or use the browsers locations its far off from where google maps says I am? How does that work?
– Zapnologica
Apr 27 '15 at 6:49
8
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Creating a jQuery object from a big HTML-string
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Update:
From jQuery 1.8, we can use $.parseHTML, which will parse the HTML string to an array of DOM nodes. eg:
var dom_nodes = $($.parseHTML('<div><input type="text" value="val" /></div>'));
alert( dom_nodes.find(...
ViewPager with Google Maps API v2: mysterious black view
...grated the new google maps api v2 fragment in a view pager. When scrolling from the map fragment, a black view overlaps the adjacent fragments. Someone has solved?
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What is an 'endpoint' in Flask?
... you might go about creating a view, it actually abstracts some extra info from you. Behind the scenes, Flask did not make the leap directly from URL to the view function that should handle this request. It does not simply say...
URL (http://www.example.org/greeting/Mark) should be handled by View ...
Converting from IEnumerable to List [duplicate]
I want to convert from IEnumerable<Contact> to List<Contact> . How can I do this?
5 Answers
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Programmatically get the cache line size?
...t sysconf(3).
sysconf (_SC_LEVEL1_DCACHE_LINESIZE)
You can also get it from the command line using getconf:
$ getconf LEVEL1_DCACHE_LINESIZE
64
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Structure padding and packing
... struct in an array */
} x;
Packing, on the other hand prevents compiler from doing padding - this has to be explicitly requested - under GCC it's __attribute__((__packed__)), so the following:
struct __attribute__((__packed__)) mystruct_A {
char a;
int b;
char c;
};
would produce s...
Entity Framework Code First - two Foreign Keys from same table
...s something you have to handle in your application and not in the mapping. From the mapping perspective, pairs are allowed to play twice (each is guest and home once).
– Ladislav Mrnka
Jun 8 '13 at 22:08
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How to log something in Rails in an independent log file?
... the standard development.log or production.log. I want to do this logging from a model class.
9 Answers
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