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How do I fix "The expression of type List needs unchecked conversion…'?
...common problem when dealing with pre-Java 5 APIs. To automate the solution from erickson, you can create the following generic method:
public static <T> List<T> castList(Class<? extends T> clazz, Collection<?> c) {
List<T> r = new ArrayList<T>(c.size());
...
How to determine if a type implements a specific generic interface type
...
By using the answer from TcKs it can also be done with the following LINQ query:
bool isBar = foo.GetType().GetInterfaces().Any(x =>
x.IsGenericType &&
x.GetGenericTypeDefinition() == typeof(IBar<>));
...
Making an array of integers in iOS
...
NB: arrays are strongly typed in Swift; in that case, the compiler infers from the content that the array is an array of integers. You could use this explicit-type syntax, too:
var array: [Int] = [1, 2, 3, 4, 5, 6]
If you wanted an array of Doubles, you would use :
var array = [1.0, 2.0, 3.0,...
Why shouldn't I use “Hungarian Notation”?
... unsafe, so that it simply cannot be passed to a safe function. To convert from unsafe to safe should require processing with some kind of a sanitize function.
A lot of the things that Joel talks of as "kinds" are not kinds; they are, in fact, types.
What most languages lack, however, is a type sy...
What do *args and **kwargs mean? [duplicate]
...ing something wrong here, this answer has so many votes" ;) Another upvote from me, because it is very clear and very good.
– Tadeck
Aug 16 '12 at 2:07
2
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Why do I need Transaction in Hibernate for read-only operations?
... is DB specific. E.g. MySQL added support for this only in InnoDB starting from 5.6.4 version.
If you're not using JDBC directly, but rather an ORM, that might be problematic. For instance Hibernate community says that working outside of transaction might cause unpredictable behavior. This is becaus...
How to enable curl, installed Ubuntu LAMP stack?
...
From http://buzznol.blogspot.com/2008/12/install-curl-extension-for-php-in.html:
sudo apt-get install php5-curl
After installing libcurl you should restart the web server with one of the following commands,
sudo /etc/ini...
Vim: Close All Buffers But This One
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You could use this script from vim.org:
http://www.vim.org/scripts/script.php?script_id=1071
Just put it to your .vim/plugin directory and then use :BufOnly command to close all buffers but the active one. You could also map it elsewhere you like in...
Error executing command 'ant' on Mac OS X 10.9 Mavericks when building for Android with PhoneGap/Cor
...anagers, the problem can simply be fixed by downloading the binary release from the apache ANT web site and adding the binary to your system PATH.
For example, on Mountain Lion, in ~/.bash_profile and ~/.bashrc my path was setup like this:
export ANT_HOME="/usr/share/ant"
export PATH=$PATH:$ANT_...
Running junit tests in parallel in a Maven build?
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From junit 4.7 it's now possible to run tests in parallel without using TestNG. Actually it has been possible since 4.6, but there are a number of fixes being made in 4.7 that will make it a viable option. You may also run pa...