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Does use of final keyword in Java improve the performance?
...timizations.
(Of course, this is assuming you're using HotSpot - but it's by far the most common JVM, so...)
To my mind you should use final based on clear design and readability rather than for performance reasons. If you want to change anything for performance reasons, you should perform appropr...
Polymorphism vs Overriding vs Overloading
...emale. It’s got to be one or the other.
So we defer the implementation by using the abstract class.
public class Male extends Human{
...
@Override
public void goPee(){
System.out.println("Stand Up");
}
}
and
public class Female extends Human{
...
@Override
public ...
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...roduct being sold out. 5xx errors are intended for errors that are caused by the system breaking down in some way, not for an action that's disallowed by a business rule.
– carlin.scott
Dec 14 '15 at 19:35
...
Why are ToLookup and GroupBy different?
...
why would I ever bother with GroupBy? Why should it exist?
What happens when you call ToLookup on an object representing a remote database table with a billion rows in it?
The billion rows are sent over the wire, and you build the lookup table locally.
Wh...
Detect if an input has text in it using CSS — on a page I am visiting and do not control?
...ute (that CSS sees), is not the same as the node's value property (Changed by the user or DOM javascript, and submitted as form data).
Unless you care only about the initial state, you must use a userscript or Greasemonkey script. Fortunately this is not hard. The following script will work in Ch...
How to enable curl, installed Ubuntu LAMP stack?
...
You only have to install the php5-curl library. You can do this by running
sudo apt-get install php5-curl
Click here for more information.
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Error executing command 'ant' on Mac OS X 10.9 Mavericks when building for Android with PhoneGap/Cor
... Mavericks anymore.
Bulletproof solution:
Download and install Homebrew by executing following command in terminal:
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Install Apache Ant via Homebrew by executing
brew install ant
Run the PhoneGap...
Get operating system info
... 19/14) There was a suggested edit on Jan. 18, 2014 to add /msie|trident/i by YJSoft a new member on SO.
The comment read as:
Comment: because msie11's ua doesn't include msie (it includes trident instead)
I researched this for a bit, and found a few links explaining the Trident string.
http://...
What is a monad?
...ctions may not always return a valid value. In Haskell this is represented by the Maybe-type, which is an option which is either Some value or Nothing.
Chaining operations which always return a valid value is of course straightforward:
streetName = getStreetName (getAddress (getUser 17))
But what ...
RSS Feeds in ASP.NET MVC
...ExecuteResult method.
ExecuteResult has the ControllerContext passed to it by the caller and with this you can get the data and content type.
Once you change the content type to rss, you will want to serialize the data to RSS (using your own code or another library) and write to the response.
Create...