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Getting a File's MD5 Checksum in Java
...0bb2827c5eacf570b6064e24e0e6653b
// ref :
// http://www.apache.org/dist/
// tomcat/tomcat-5/v5.5.17/bin
// /apache-tomcat-5.5.17.exe.MD5
// 0bb2827c5eacf570b6064e24e0e6653b *apache-tomcat-5.5.17.exe
}
catch ...
Elements order in a “for (… in …)” loop
...says that "An Object is an unordered collection of properties" (see http://www.mozilla.org/js/language/E262-3.pdf section 8.6).
It's not going to be standards conformant (i.e. safe) to assume all Javascript implementations will enumerate in declaration order.
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Check play state of AVPlayer
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For Swift:
AVPlayer:
let player = AVPlayer(URL: NSURL(string: "http://www.sample.com/movie.mov"))
if (player.rate != 0 && player.error == nil) {
println("playing")
}
Update:
player.rate > 0 condition changed to player.rate != 0 because if video is playing in reverse it can be n...
Animate change of view controllers without using navigation controller stack, subviews or modal cont
...a simple container class I called TransitionController. You can find it at https://gist.github.com/1394947.
As an aside, I prefer the implementation in a separate class b/c it's easier to reuse. If you don't want that, you could simply implement the same logic directly in your app delegate eliminat...
Removing Java 8 JDK from Mac
...s what I did to move to JDK 7.
1) download the latest from Oracle (http://www.oracle.com/technetwork/java/javase/downloads/index.html) and install it.
2) Remove (using rm - if you've got backups, you can revert if you make a mistake) all the JDK6 and JRE6 files.
At this stage, you should see:
% ...
Modelling an elevator using Object-Oriented Analysis and Design [closed]
...
Detailed Answer:
http://www.angelfire.com/trek/software/elevator.html
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Best approach to remove time part of datetime in SQL Server
...ion or CAST to a column invalidates index usage. See number 2 here: http://www.simple-talk.com/sql/t-sql-programming/ten-common-sql-programming-mistakes/
Now, this does have an example of later SQL Server optimiser versions managing CAST to date correctly, but generally it will be a bad idea ...
E...
Javascript reduce on array of objects
...2,3].reduce(callback,0)
Read more on the functional programming spec here: https://github.com/fantasyland/fantasy-land#foldable
Some more background
The reduce method takes two parameters,
Array.prototype.reduce( callback, initialItem )
The callback function takes the following parameters
(accumula...
How to concatenate strings of a string field in a PostgreSQL 'group by' query?
...or
combined with array_to_string() to
format it as a list:
http://www.postgresql.org/docs/current/static/xaggr.html
I'd link to the 8.4 development docs but they don't seem to list this feature yet.
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How do you test that a Python function throws an exception?
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from: http://www.lengrand.fr/2011/12/pythonunittest-assertraises-raises-error/
First, here is the corresponding (still dum :p) function in file dum_function.py :
def square_value(a):
"""
Returns the square value of a.
"""
tr...