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Finding diff between current and last version
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How can I count occurrences with groupBy?
...nting()));
System.out.println(counted);
}
}
Result:
{Hello=2, World=1}
(There's also the possibility of using groupingByConcurrent for more efficiency. Something to bear in mind for your real code, if it would be safe in your context.)
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How do you create a transparent demo screen for an Android app?
...000000"
The last 6 digits define the color: 000000 is black.
The first 2 define the opacity: 00 is 100% transparent, ff is 100% opaque. So choose something in between.
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Passing a function with parameters as a parameter?
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249
Use a "closure":
$(edit_link).click(function(){ return changeViewMode(myvar); });
This crea...
How do function pointers in C work?
... n+m;
}
First thing, let's define a pointer to a function which receives 2 ints and returns an int:
int (*functionPtr)(int,int);
Now we can safely point to our function:
functionPtr = &addInt;
Now that we have a pointer to the function, let's use it:
int sum = (*functionPtr)(2, 3); // s...
Using Java with Nvidia GPUs (CUDA)
... libraries.
You might also find it interesting to hear that in October 2012, the OpenJDK HotSpot group started the project "Sumatra": http://openjdk.java.net/projects/sumatra/ . The goal of this project is to provide GPU support directly in the JVM, with support from the JIT. The current status ...
In Python, how can you load YAML mappings as OrderedDicts?
... PyYAML 's loader to load mappings (and ordered mappings) into the Python 2.7+ OrderedDict type, instead of the vanilla dict and the list of pairs it currently uses.
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Crontab Day of the Week syntax
...e of days, such as MON, THU, etc:
0 - Sun Sunday
1 - Mon Monday
2 - Tue Tuesday
3 - Wed Wednesday
4 - Thu Thursday
5 - Fri Friday
6 - Sat Saturday
7 - Sun Sunday
Graphically:
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