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Objective-C: difference between id and void *
... will cause premature reaping of objects if _superPrivateDoNotTouch is actually an object. Don't do that.
attempting to invoke a method on a reference of void * type will barf up a compiler warning.
attempting to invoke a method on an id type will only warn if the method being called has not been d...
How to flatten only some dimensions of a numpy array
...an take -1 as an argument, meaning "total array size divided by product of all other listed dimensions":
e.g. to flatten all but the last dimension:
>>> arr = numpy.zeros((50,100,25))
>>> new_arr = arr.reshape(-1, arr.shape[-1])
>>> new_arr.shape
# (5000, 25)
...
Collect successive pairs from a stream
...eamEx library which extends standard streams provides a pairMap method for all stream types. For primitive streams it does not change the stream type, but can be used to make some calculations. Most common usage is to calculate differences:
int[] pairwiseDiffs = IntStreamEx.of(input).pairMap((a, b)...
Turning off “created by” stamp when generating files in IntelliJ
...nclude Templates in the popup action search dialog. There should be a tab called Includes on which you will find the Java and ActionScript file types, and the text can simply be removed completely if you like.
But, in more recent versions of IntelliJ things have got quite a bit easier. The first ti...
How can I convert uppercase letters to lowercase in Notepad++
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@LucVu: This is called Title Case, Notepad++ calls it Proper Case and the answer is here: superuser.com/questions/115432/…
– Erlend Leganger
Jun 10 '16 at 7:00
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Using Ajax.BeginForm with ASP.NET MVC 3 Razor
...your latter example, I must add data: $('form').serialize(),to the ajax() call. Otherwise, no form data are passed and my model is invalid on the server side. Wonder if there is something I've overlooked?
– Brett
Oct 31 '11 at 16:14
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javac is not recognized as an internal or external command, operable program or batch file [closed]
...nal or external command... error message.
In a nutshell, you have not installed Java correctly. Finalizing the installation of Java on Windows requires some manual steps. You must always perform these steps after installing Java, including after upgrading the JDK.
Environment variables and PATH
(...
In Clojure, when should I use a vector over a list, and the other way around?
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I actually used to idle there. I switched IRC clients and never thought to add #stackoverflow to my autojoin list.
– Rayne
Jul 18 '09 at 18:19
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The difference between Classes, Objects, and Instances
...he set of values that is the type Y.
So that's what the term "instance" really means: it describes a relationship not a thing.
The type system of the Java programming language supports two kinds of types, primitive types and reference types. The reference types are further divided into the classe...
How do I determine whether an array contains a particular value in Java?
...h FindBugs will tell you is very naughty. Do not modify statics and do not allow other code to do so also. At an absolute minimum, the field should be private:
private static final String[] VALUES = new String[] {"AB","BC","CD","AE"};
(Note, you can actually drop the new String[]; bit.)
Reference a...