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How do getters and setters work?
...is if you call someObj.getTime().setHour(5) it should not affect someObj's internal state. Also setters and getters (accessors and mutators by their fancier name) have a very strict method signature meaning that getter doesn't have any parameters. Methods in general should only do one thing anyway.
...
How do I measure time elapsed in Java? [duplicate]
...- starts;
}
public long time(TimeUnit unit) {
return unit.convert(time(), TimeUnit.MILLISECONDS);
}
}
Usage:
TimeWatch watch = TimeWatch.start();
// do something
long passedTimeInMs = watch.time();
long passedTimeInSeconds = watch.time(TimeUnit.SECONDS);
Aft...
How can I use Async with ForEach?
...for the same reasons).
In this case, I recommend projecting each element into an asynchronous operation, and you can then (asynchronously) wait for them all to complete.
using (DataContext db = new DataLayer.DataContext())
{
var tasks = db.Groups.ToList().Select(i => GetAdminsFromGroupAsyn...
Why are const parameters not allowed in C#?
...good answers, I'll add yet another reason why to not put C-style constness into C#. You said:
we mark parameter as const in order to be sure that its state will not be changed in method.
If const actually did that, that would be great. Const doesn't do that. The const is a lie!
Const doesn't...
printf format specifiers for uint32_t and size_t
...he same as unsigned long (possibly 64 bits) when it's actually an unsigned int (32 bits). Try using %zu in both cases.
I'm not entirely certain though.
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How do I check if a string is valid JSON in Python?
... #prints True
print is_json('{"foo":[5,6.8],"foo":"bar"}') #prints True
Convert a JSON string to a Python dictionary:
import json
mydict = json.loads('{"foo":"bar"}')
print(mydict['foo']) #prints bar
mylist = json.loads("[5,6,7]")
print(mylist)
[5, 6, 7]
Convert a python object to JSON str...
Why use the SQL Server 2008 geography data type?
...lDegrees = 1
Begin
set @X = 1
END
Else
Begin
set @X = 24
End
-- convert to decimal degrees
set @Lat1 = @Latitude1 * @X
set @Long1 = @Longitude1 * @X
set @Lat2 = @Latitude2 * @X
set @Long2 = @Longitude2 * @X
-- convert to radians: radians = (degrees/180) * PI
set @Lat1 = (@Lat1 / 180) * @...
C++: What is the size of an object of an empty class?
...rely could not be 0 bytes since it should be possible to reference and point to it like any other object. But, how big is such an object?
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Avoiding memory leaks with Scalaz 7 zipWithIndex/group enumeratees
...ainst the scalaz-stream API. This is a newer stream processing API that is intended to replace iteratee.
For completeness, here's the test code:
// create a stream containing `n` arrays with `sz` Ints in each one
def streamArrs(sz: Int, n: Int): Process[Task, Array[Int]] =
(Process emit Array.fi...
do { … } while (0) — what is it good for? [duplicate]
...an if statement would require that you omit the semicolon, which is counterintuitive:
if (condition)
FOO(x)
else
...
If you define FOO like this:
#define FOO(x) do { foo(x); bar(x); } while (0)
then the following is syntactically correct:
if (condition)
FOO(x);
else
....
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