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What is the difference between Serializable and Externalizable in Java?
...ava.io.Serializable but with custom-written mechanisms to perform the marshalling and unmarshalling functions (you need to implement readExternal and writeExternal methods on your class). This gives you the means to get around the reflection performance bottleneck.
In recent versions of Java (1.3 ...
What's the role of GetHashCode in the IEqualityComparer in .NET?
...bjects - so the hash code is not necessarily unique.
A dictionary is a really cool data structure that trades a higher memory footprint in return for (more or less) constant costs for Add/Remove/Get operations. It is a poor choice for iterating over though. Internally, a dictionary contains an arr...
Making WPF applications look Metro-styled, even in Windows 7? (Window Chrome / Theming / Theme)
...ern UI on GitHub. (.NET4.5 only)
There is one more it's Elysium but I really didn't try this one.
The style I did was really easy when I looked how it's done in these. Now I have my own Window and I can do whatever I want with xaml... for me it's the main reason why I did my own. And I made on...
Assigning code to a variable
...:
var ButtonClicked = new Action(() => MessageBox.Show("hi"));
Then call it:
ButtonClicked();
For completeness (in regards to the various comments)...
As Erik stated, you could execute multiple lines of code:
var ButtonClicked = new Action(() =>
{
MessageBox.Show("hi");
Messag...
What is the difference between customErrors and httpErrors?
...
I recommend installing and using IIS 7 Express with Visual Studio for debugging purposes. It will use the same config options as regular IIS 7, unlike Cassini.
– Sean
Nov 5 '11 at 21:37
...
Does Java casting introduce overhead? Why?
...casting, when you cast from a type to a wider type, which is done automatically and there is no overhead:
String s = "Cast";
Object o = s; // implicit casting
Explicit casting, when you go from a wider type to a more narrow one. For this case, you must explicitly use casting like that:
Object o ...
What are the differences between a pointer variable and a reference variable in C++?
...compiling error
int &r = *p; <--- likely no compiling error, especially if the nullptr is hidden behind a function call, yet it refers to a non-existent int at address 0
Pointers can iterate over an array; you can use ++ to go to the next item that a pointer is pointing to, and + 4 to go to...
How to correctly use “section” tag in HTML5?
...ion. A section, in this context, is a thematic grouping of
content, typically with a heading.
Examples of sections would be chapters, the various tabbed pages in a
tabbed dialog box, or the numbered sections of a thesis. A Web site's
home page could be split into sections for an introduct...
What does “S3 methods” mean in R?
...:
setting the class of objects of
interest (e.g.: the return value of a
call to method glm has class glm)
providing a method with the general
name (e.g. print), then a dot, and
then the classname (e.g.:
print.glm)
some preparation has to have been
done to this general name (print)
for this to work...
Valid values for android:fontFamily and what they map to?
...:textStyle">italic</item>
For quick reference, this is how they all look like:
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