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What does void mean in C, C++, and C#?
... to get the fundamentals on where the term " void " comes from, and why it is called void. The intention of the question is to assist someone who has no C experience, and is suddenly looking at a C-based codebase.
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How to use LocalBroadcastManager?
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I'll answer this anyway. Just in case someone needs it.
ReceiverActivity.java
An activity that watches for notifications for the event named "custom-event-name".
@Override
public void onCreate(Bundle savedInstanceState) {
...
// ...
How to determine the current shell I'm working on
...ote that all three approaches can be fooled if the executable of the shell is /bin/sh, but it's really a renamed bash, for example (which frequently happens).
Thus your second question of whether ps output will do is answered with "not always".
echo $0 - will print the program name... which in th...
Check if a number is int or float
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Use isinstance.
>>> x = 12
>>> isinstance(x, int)
True
>>> y = 12.0
>>> isinstance(y, float)
True
So:
>>> if isinstance(x, int):
print 'x is a int!'
x is a int!
_EDIT:_
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Why should I avoid using Properties in C#?
In his excellent book, CLR Via C#, Jeffrey Richter said that he doesn't like properties, and recommends not to use them. He gave some reason, but I don't really understand. Can anyone explain to me why I should or should not use properties?
In C# 3.0, with automatic properties, does this change?
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Why should I declare a virtual destructor for an abstract class in C++?
I know it is a good practice to declare virtual destructors for base classes in C++, but is it always important to declare virtual destructors even for abstract classes that function as interfaces? Please provide some reasons and examples why.
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What is the difference between using IDisposable vs a destructor in C#?
When would I implement IDispose on a class as opposed to a destructor? I read this article , but I'm still missing the point.
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What is the non-jQuery equivalent of '$(document).ready()'?
What is the non-jQuery equivalent of $(document).ready() ?
9 Answers
9
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Difference between string and text in rails?
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The difference relies in how the symbol is converted into its respective column type in query language.
with MySQL :string is mapped to VARCHAR(255)
- http://guides.rubyonrails.org/migrations.html
:string | VARCHAR | :limit ...
Pointers in C: when to use the ampersand and the asterisk?
...be used in front of a pointer variable to get the value of the object that is pointed to by the pointer. But things work differently when you're working with arrays, strings or when you're calling functions with a pointer copy of a variable. It's difficult to see a pattern of logic inside all of thi...