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Determine which JAR file a class is from
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Yes. It works for all classes except classes loaded by bootstrap classloader. The other way to determine is:
Class klass = String.class;
URL location = klass.getResource('/' + klass.getName().replace('.', '/') + ".class");
As notnoop pointe...
Pass An Instantiated System.Type as a Type Parameter for a Generic Class
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OK, this is good, but how does one go about calling methods on created? More reflection?
– Robert C. Barth
Nov 5 '08 at 20:38
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Faye vs. Socket.IO (and Juggernaut)
...lementation of Bayeux, which has a large bearing on the following.
Conceptually, yes: Faye could use Socket.IO. In practise, there are some barriers to this:
I've no idea what kind of server-side support Socket.IO requires, and the requirement that the Faye client (there are server-side clients in...
How do I find out which process is locking a file using .NET?
... Good point. This wasn't a problem with the deployment script (used internally), but would be in other scenarios.
– orip
Jan 5 '12 at 10:54
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Is it possible to do start iterating from an element other than the first using foreach?
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Good call. WTB auto-complete (gahh can't remember the real name of it) in stackoverflow ;)
– MoarCodePlz
Jun 21 '11 at 17:56
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What does $NON-NLS-1$ mean?
...pse can be configured to detect string literals, so that you don't accidentally have leave unexternalized UI strings in the code; however, there are strings which should not be externalized (such as regexps) and so, //$NON-NLS-1$ gives you a way to communicate that fact to the compiler.
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RSpec: describe, context, feature, scenario?
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The context is an alias for describe, so they are functionally equivalent. You can use them interchangeably, the only difference is how your spec file reads. There is no difference in test output for example. The RSpec book says:
"We tend to use describe() for things and context...
The differences between .build, .create, and .create! and when should they be used?
...< 3.x
The most important part, however, is that these methods can be called through an association (has_many, etc.) to automatically link the two models.
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Ruby class instance variable vs. class variable
...n store something common to that class without having sub-classes automatically also get them (and vice-versa). With class variables, you have the convenience of not having to write self.class from an instance object, and (when desirable) you also get automatic sharing throughout the class hierarchy...
How to get Erlang's release version number from a shell?
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erl -eval 'erlang:display(erlang:system_info(otp_release)), halt().' -noshell
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