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Python class inherits object
...g so are numerous, to list some of them:
Support for descriptors. Specifically, the following constructs are made possible with descriptors:
classmethod: A method that receives the class as an implicit argument instead of the instance.
staticmethod: A method that does not receive the implicit a...
Increasing the maximum number of TCP/IP connections in Linux
..._local_port_range = 32768 61000
net.ipv4.tcp_fin_timeout = 60
This basically means your system cannot consistently guarantee more than (61000 - 32768) / 60 = 470 sockets per second. If you are not happy with that, you could begin with increasing the port_range. Setting the range to 15000 61000 i...
When can I use a forward declaration?
...ts; it knows nothing about its size, members, or methods. This is why it's called an incomplete type. Therefore, you cannot use the type to declare a member, or a base class, since the compiler would need to know the layout of the type.
Assuming the following forward declaration.
class X;
Here's...
How to checkout a specific Subversion revision from the command line?
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If you already have it checked out locally then you can cd to where it is checked out, then use this syntax:
$ svn up -rXXXX
ref: Checkout a specific revision from subversion from command line
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Why does this C++ snippet compile (non-void function does not return a value) [duplicate]
...exception throws or longjmps in the function itself, as well as all of its callees.
While it is quite easy for a compiler to identify a function that looks like it might be missing a return, it is considerably harder to prove that it is missing a return. In order to lift compiler vendors of this bu...
How many constructor arguments is too many?
Let's say you have a class called Customer, which contains the following fields:
15 Answers
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Retrieving a random item from ArrayList [duplicate]
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anyItem is a method and the System.out.println call is after your return statement so that won't compile anyway since it is unreachable.
Might want to re-write it like:
import java.util.ArrayList;
import java.util.Random;
public class Catalogue
{
private Random ran...
Error when installing windows SDK 7.1
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The latest version (as of now) is called Microsoft Visual C++ 2010 SP1 Redistributable Package and is version 10.0.40219.1. Too k me a while to figure out I needed to search for SP1, so leaving this here for others.
– Terrabits
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Floating point vs integer calculations on modern hardware
...ach either 0 or +/-inf very very quickly, which may or may not be (theoretically) treated as a special case/fastpatheed by certain fpu implementations.
– vladr
Jan 3 '13 at 18:18
3...
How do I autoindent in Netbeans?
In eclipse you can click Ctrl + I at any line, and it'll automatically indent the line or group of lines according to the indentation scheme you chose in the settings.
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