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What is reflection and why is it useful?
...interface, but using reflection, your code can look at the object and find out if it has a method called 'doSomething' and then call it if you want to.
So, to give you a code example of this in Java (imagine the object in question is foo) :
Method method = foo.getClass().getMethod("doSomething", n...
Static method behavior in multi-threaded environment in java
...ion that bother me and make several arguments in my mind.
I want to throw out all the doubts about below questions.
2 Answ...
Facebook Graph API, how to get users email?
I'm using the Graph API, but I can't figure out how to get a logged-in users email address.
13 Answers
...
Safari 3rd party cookie iframe trick no longer working?
...lication final tab/app URL and you’ll see your application will work without any problem.
<?php
// START SAFARI SESSION FIX
session_start();
$page_url = "http://www.facebook.com/pages/.../...?sk=app_...";
if (isset($_GET["start_session"]))
die(header("Location:" . $page...
How does this milw0rm heap spraying exploit work?
... have difficulty to read JavaScript code but for this one I can’t figure out the logic. The code is from an exploit that has been published 4 days ago. You can find it at milw0rm .
...
NoClassDefFoundError - Eclipse and Android
...ror for a class that I could clearly see was included in the jar (checking out the ReferencedLibraries classes).
The solution was to remove my jars from the build path and rename my "lib" folder to "libs". This is an ant convention, and seems to be the way the new ADT finds and includes libraries ...
Is there a label/goto in Python?
...works.
Granted, that isn't the best way to substitute for goto. But without knowing exactly what you're trying to do with the goto, it's hard to give specific advice.
@ascobol:
Your best bet is to either enclose it in a function or use an exception. For the function:
def loopfunc():
while...
How to resize a tableHeaderView of a UITableView?
...bview changes size over a second as an animation. Now I'm trying to figure out how to animate the tableHeaderView with it.
– Andrew
Jan 18 '10 at 7:56
1
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How do I find the .NET version?
How do I find out which version of .NET is installed?
19 Answers
19
...
How to swap keys and values in a hash
...;["two", "2"]}
def safe_invert
each_with_object({}) do |(key,value),out|
out[value] ||= []
out[value] << key
end
end
end
Note: This code with tests is now on GitHub.
Or:
class Hash
def safe_invert
self.each_with_object({}){|(k,v),o|(o[v]||=[])<<k}
e...