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C++ code file extension? .cc vs .cpp [closed]
...it doesn't matter because C++ compilers can deal with the files in either format. If it's a real issue within your team, flip a coin and move on to the actual work.
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Struct like objects in Java
...oup projects where there are many programmers using the same code, it's important to avoid side effects. Besides, sometimes it's better to return a copy of field's object or transform it somehow etc. You can mock such methods in your tests. If you create a new class you might not see all possible ac...
Should __init__() call the parent class's __init__()?
...you call it, it is then also optional whether to use the super identifier, or whether to explicitly name the super class:
object.__init__(self)
In case of object, calling the super method is not strictly necessary, since the super method is empty. Same for __del__.
On the other hand, for __new__...
Java: Equivalent of Python's range(int, int)?
...iscreteDomains.integers());
You can also implement a fairly simple iterator to do the same sort of thing using Guava's AbstractIterator:
return new AbstractIterator<Integer>() {
int next = getStart();
@Override protected Integer computeNext() {
if (isBeyondEnd(next)) {
return...
What is the use of Enumerable.Zip extension method in Linq?
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The Zip operator merges the corresponding elements of two sequences using a specified selector function.
var letters= new string[] { "A", "B", "C", "D", "E" };
var numbers= new int[] { 1, 2, 3 };
var q = letters.Zip(numbers, (l, n) => ...
How to programmatically take a screenshot on Android?
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Here is the code that allowed my screenshot to be stored on an SD card and used later for whatever your needs are:
First, you need to add a proper permission to save the file:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
And this is the...
How does an underscore in front of a variable in a cocoa objective-c class work?
I've seen in a few iPhone examples that attributes have used an underscore _ in front of the variable. Does anyone know what this means? Or how it works?
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ViewController respondsToSelector: message sent to deallocated instance (CRASH)
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Use Instruments to track down deallocated instance errors. Profile your application (Cmd ⌘+I) and choose Zombies template. After your application is running, try to crash it. You should get something like that:
Click on the arrow next to address in the popover to show objec...
Convert a timedelta to days, hours and minutes
...imedelta. I want the days, hours and minutes from that - either as a tuple or a dictionary... I'm not fussed.
7 Answers
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How to get JavaScript caller function line number? How to get JavaScript caller source URL?
I am using the following for getting the JavaScript caller function name:
15 Answers
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