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What is the difference between up-casting and down-casting with respect to class variable
...downcasting must be manually done by the programmer, and i'm going to give my best to explain why is that so.
Upcasting and downcasting are NOT like casting primitives from one to other, and i believe that's what causes a lot of confusion, when programmer starts to learn casting objects.
Polymorphis...
Does Java SE 8 have Pairs or Tuples?
...class in Java SE" but by the time the thread reached its end I had changed my mind.
Note however that JavaFX has the javafx.util.Pair class. JavaFX's APIs evolved separately from the Java SE APIs.
As one can see from the linked question What is the equivalent of the C++ Pair in Java? there is quit...
No generic implementation of OrderedDictionary?
...ltiple ways of implementing this, but I chose to use a KeyedCollection for my internal storage. I also chose to implement various methods for sorting the way that List<T> does since this is essentially a hybrid IList and IDictionary. I've included my implementation here for posterity.
Here's ...
Cancel split window in Vim
I have split my windows horizontally. Now how can I return to normal mode, i.e. no split window just one window without cancelling all of my open windows. I have 5 and do not want to "quit", just want to get out of split window.
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How do I make calls to a REST api using C#?
...
My suggestion would be to use RestSharp. You can make calls to REST services and have them cast into POCO objects with very little boilerplate code to actually have to parse through the response. This will not solve your part...
How to select between brackets (or quotes or …) in Vim?
... been searching and asking for something similar and wasn't satisfied with my results. Awesome.
– alfredodeza
Nov 18 '10 at 13:38
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Check if string begins with something? [duplicate]
...: jsperf.com/starts-with/2 . Substring method appears to be the fastest on my machine (with V8).
– Pijusn
Jul 20 '13 at 19:34
21
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How to change background color in android app
I want to be able to change the background color to white in my android app in the simplest way possible.
19 Answers
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PHP Remove elements from associative array
...ng the unset() function is, this approach makes a lot of sense.
Anyway:
$my_array = array_filter($my_array,
function($el) {
return $el["value"]!="Completed" && $el!["value"]!="Marked as Spam";
});
You can us...
How can I disable ARC for a single file in a project?
I am using ARC successfully in my project. However, I have encountered a few files (e.g., in unit tests and mock objects) where the rules of ARC are a little more fragile right now. I recall hearing that there was a way to disable ARC on a per-file basis, though I have been unable to find this optio...