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Get OS-level system information
...what you are looking for, but I thought I would provide it for the sake of completeness. Here is a small example. Edit: You can also get disk usage information from the java.io.File class. The disk space usage stuff requires Java 1.6 or higher.
public class Main {
public static void main(String[]...
What is Cache-Control: private?
...nly send the file if it has been modified since 2012/10/16 3:13:38:
GET / HTTP/1.1
If-Modified-Since: Tue, 16 Oct 2012 03:13:38 GMT
The server receives the request, realizes that the client has the most recent version already. Rather than sending the client 200 OK, followed by the contents of the...
How to append text to an existing file in Java?
I need to append text repeatedly to an existing file in Java. How do I do that?
31 Answers
...
Sort JavaScript object by key
...estObj[c], a)
// initial value for reduce.
,{}
);
Docs for reduce: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce
Why use parenthesis on JavaScript return statements: http://jamesknelson.com/javascript-return-parenthesis/
Why Sorting is a bi...
Can Objective-C switch on NSString?
Is there a more intelligent way to rewrite this?
13 Answers
13
...
Convert Iterable to Stream using Java 8 JDK
... (the default implementation uses spliteratorUnknownSize), but in the more common case, where your Iterable is already a collection, you'll get a better spliterator, and therefore better stream performance (maybe even good parallelism). It's also less code:
StreamSupport.stream(iterable.spliterato...
How to develop and test an app that sends emails (without filling someone's mailbox with test data)?
...
I faced the same problem a few weeks ago and wrote this: http://smtp4dev.codeplex.com
Windows 7/Vista/XP/2003/2010 compatible dummy SMTP server. Sits in the system tray and does not deliver the received messages. The received messages can be quickly viewed, saved and the source...
What is the difference between require() and library()?
...parameter of install.packages(), such as
install.packages(package, repos="http://cran.us.r-project.org")
You can wrap require() and library() in suppressPackageStartupMessages() to, well, suppress package startup messages, and also use the parameters require(..., quietly=T, warn.conflicts=F) if ne...
How do I round a decimal value to 2 decimal places (for output on a page)
... would use:
decimal.Round(yourValue, 2, MidpointRounding.AwayFromZero);
http://msdn.microsoft.com/en-us/library/9s0xa85y.aspx
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JavaScript URL Decode function
...
Here's what I used:
In JavaScript:
var url = "http://www.mynewsfeed.com/articles/index.php?id=17";
var encoded_url = encodeURIComponent(url);
var decoded_url = decodeURIComponent(encoded_url);
In PHP:
$url = "http://www.mynewsfeed.com/articles/index.php?id=17";
$enco...