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Interface naming in Java [closed]
...an interface or an implementation class. So, even List is an interface and String is an actual class, a method might be passed both of them - it doesn't make sense to visually distinguish the interfaces.
In general, we will actually prefer the use of interfaces in client code (prefer List to ArrayLi...
How to get hex color value rather than RGB value?
...
+1, You could use Number.toString(16) - at least for each hex digit (or pad with 0 if under 16)
– orip
Nov 16 '09 at 8:09
19
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define() vs. const
...O')) {
define('FOO', 'BAR');
}
const accepts a static scalar (number, string or other constant like true, false, null, __FILE__), whereas define() takes any expression. Since PHP 5.6 constant expressions are allowed in const as well:
const BIT_5 = 1 << 5; // Valid since PHP 5.6 and in...
What is default session timeout in ASP.NET?
...|UseDeviceProfile]"
regenerateExpiredSessionId="[True|False]"
sqlConnectionString="sql connection string"
sqlCommandTimeout="number of seconds"
allowCustomSqlDatabase="[True|False]"
useHostingIdentity="[True|False]"
stateConnectionString="tcpip=server:port"
stateNetworkTimeout="number of seconds"
cu...
Go: panic: runtime error: invalid memory address or nil pointer dereference
...pe AnimalSounder interface {
MakeNoise()
}
type Dog struct {
Name string
mean bool
BarkStrength int
}
func (dog *Dog) MakeNoise() {
//implementation
}
I forgot the *(dog Dog) part, I do not recommend it. Then you get into ugly trouble when calling MakeNoice on an AnimalSounde...
Getting error: Peer authentication failed for user “postgres”, when trying to get pgsql working with
... muck much with the pg_hba.conf but instead I would adjust your connection string:
psql -U someuser -h 127.0.0.1 database
where someuser is your user you're connecting as and database is the database your user has permission to connect to.
Here is what I do on Debian to setup postgres:
http://...
Set background color of WPF Textbox in C# code
...
You can convert hex to RGB:
string ccode = "#00FFFF00";
int argb = Int32.Parse(ccode.Replace("#", ""), NumberStyles.HexNumber);
Color clr = Color.FromArgb(argb);
share
...
Missing XML comment for publicly visible type or member
...<summary>
/// Describe your member here.
/// </summary>
public string Something
{
get;
set;
}
This may appear like a joke at the first glance, but it may actually be useful. For me it turned out to be helpful to think about what methods do even for private methods (unless reall...
SqlAlchemy - Filtering by Relationship Attribute
...u: I recently made package that gives you filtering/sorting with "magical" strings as in Django, so you can now write something like
Patient.where(mother___phenoscore=10)
It's a lot shorter, especially for complex filters, say,
Comment.where(post___public=True, post___user___name__like='Bi%')
...
How can I use pickle to save a dict?
... pickling a dict will fail unless you have only simple objects in it, like strings and integers.
Python 2.7.9 (default, Dec 11 2014, 01:21:43)
[GCC 4.2.1 Compatible Apple Clang 4.1 ((tags/Apple/clang-421.11.66))] on darwin
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