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Why 0 is true but false is 1 in the shell?
... I understand this answer, but I still don't get why bool to int conversion is inverted. Is there a "return boolean convention" that says: if you return true, it means there is no errors, if you return false, it means an error occured (like the "integer = error code convention" that is...
Send data from activity to fragment in Android
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From Activity you send data with intent as:
Bundle bundle = new Bundle();
bundle.putString("edttext", "From Activity");
// set Fragmentclass Arguments
Fragmentclass fragobj = new Fragmentclass();
fragobj.setArguments(bundle);
and in Fragment onCreateView ...
Stateless vs Stateful - I could use some concrete information
I'm interested in articles which have some concrete information about stateless and stateful design in programming. I'm interested because I want to learn more about it, but I really can't find any good articles about it. I've read dozens of articles on the web which vaguely discuss the subject, or ...
Why do I get “unresolved external symbol” errors when using templates? [duplicate]
...reuse, single responsibility and separation of concerns... and the whole point of generic programming which is to have generic classes which can be used with any type you want without the template class knowing beforehand what it is going to be used for?
– jbx
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What does a colon following a C++ constructor name do? [duplicate]
...g. memory) if the object has any.
So in the case of primitive types like int, there's no advantage compared to assigning them in the body of the constructor. In the case of objects that have a constructor, it is a performance optimization because it avoids going through two object initializations ...
C# switch statement limitations - why?
... a constant time branch using a jump table. However, in sparse cases as pointed out by Ivan Hamilton the compiler may generate something else entirely.
This is actually quite easy to verify by writing various C# switch statements, some sparse, some dense, and looking at the resulting CIL with the ...
How do I make a dotted/dashed line in Android?
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the path effect is set on the paint object
Paint fgPaintSel = new Paint();
fgPaintSel.setARGB(255, 0, 0,0);
fgPaintSel.setStyle(Style.STROKE);
fgPaintSel.setPathEffect(new DashPathEffect(new float[] {10f,20f}, 0f));
you can create all sorts of dotted patte...
Objective-C Static Class Level variables
...m, each of which stores a unique ID. In C#, Java etc I can define a static int currentID and each time i set the ID i can increase the currentID and the change occurs at the class level not object level. Can this be done in Objective-C? I've found it very hard to find an answer for this.
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error, string or binary data would be truncated when trying to insert
...ne of the INSERT statements you are attempting to insert a too long string into a string (varchar or nvarchar) column.
If it's not obvious which INSERT is the offender by a mere look at the script, you could count the <1 row affected> lines that occur before the error message. The obtained nu...
@synthesize vs @dynamic, what are the differences?
...e'd accessor it must still be backed by a real field (e.g., if you write -(int) getFoo(); you must have an int foo; field). If the value is being produce by something else (e.g. calculated from other fields) then you have to use @dynamic.
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