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Pinging servers in Python
...mmand = ['ping', param, '1', host]
return subprocess.call(command) == 0
Note that, according to @ikrase on Windows this function will still return True if you get a Destination Host Unreachable error.
Explanation
The command is ping in both Windows and Unix-like systems.
The option -n (Wind...
Creating an array of objects in Java
...e this:
a1 = new A();
Similarly, with the array you need to do this:
a[0] = new A();
...before using it.
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Make div stay at bottom of page's content all the time even when there are scrollbars
...ition: fixed was designed for:
#footer {
position: fixed;
bottom: 0;
width: 100%;
}
Here's the fiddle: http://jsfiddle.net/uw8f9/
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Why is `std::move` named `std::move`?
...eadable.
The history of move dates back to the original move proposal in 2002. This paper first introduces the rvalue reference, and then shows how to write a more efficient std::swap:
template <class T>
void
swap(T& a, T& b)
{
T tmp(static_cast<T&&>(a));
a = s...
Java: How to test methods that call System.exit()?
...quals("Exit status", 42, e.status);
}
}
}
Update December 2012:
Will proposes in the comments using System Rules, a collection of JUnit(4.9+) rules for testing code which uses java.lang.System.
This was initially mentioned by Stefan Birkner in his answer in December 2011.
System.ex...
Printing the correct number of decimal points with cout
...
205
With <iomanip>, you can use std::fixed and std::setprecision
Here is an example
#includ...
How to make input type= file Should accept only pdf and xls
...
answered Aug 27 '12 at 13:10
feeelafeeela
25.3k66 gold badges5454 silver badges6666 bronze badges
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How do I connect to this localhost from another computer on the same network?
...ations/MAMP/htdocs/Symfony/ as the root of my website.
<VirtualHost *:80>
DocumentRoot "/Applications/MAMP/htdocs/Symfony/"
ServerName symfony.local
</VirtualHost>
2 Configure your hosts file:
For the client (your browser in that case) to understand what symfony.local reall...
Is there an online name demangler for C++? [closed]
...
answered May 5 '12 at 23:20
Rafael BaptistaRafael Baptista
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string to string array conversion in java
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202
To start you off on your assignment, String.split splits strings on a regular expression and th...