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Is Java a Compiled or an Interpreted programming language ?
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Java implementations typically use a two-step compilation process. Java source code is compiled down to bytecode by the Java compiler. The bytecode is executed by a Java Virtual Machine (JVM). Modern JVMs use a technique called Just-in-Time (JIT) com...
Why does a function with no parameters (compared to the actual function definition) compile?
...sumed. Arrays and
functions are not passed to functions, but are automatically converted
to pointers. If the list is terminated with an ellipsis (,...), then
there is no set number of parameters. Note: the header stdarg.h can be
used to access arguments when using an ellipsis.
And again fo...
How does collections.defaultdict work?
...ded of course they do not exist yet). To create such a "default" item, it calls the function object that you pass to the constructor (more precisely, it's an arbitrary "callable" object, which includes function and type objects). For the first example, default items are created using int(), which ...
Will code in a Finally statement fire if I return a value in a Try block?
... @Edi: Um, I don't see what background threads have to do with it. Basically, unless the whole process aborts, the finally block will execute.
– Jon Skeet
Sep 22 '16 at 13:57
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Copy constructor versus Clone()
...ICloneable should be a deep or shallow clone, thus the interface is semantically broken as your callers won't know whether the call will deep or shallow clone the object.
Instead, you should define your own IDeepCloneable (and IShallowCloneable) interfaces with DeepClone() (and ShallowClone()) meth...
When to use dynamic vs. static libraries
...c libraries aren't necessarily loaded -- they're usually loaded when first called -- and can be shared among components that use the same library (multiple data loads, one code load).
Dynamic libraries were considered to be the better approach most of the time, but originally they had a major flaw ...
mongodb find by multiple array items
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This helped me too, I needed it to find an object ID in an array, and where something like $in: [ ObjectId("4f9f2c336b810d0cf0000017") ] failed, $in: [ "4f9f2c336b810d0cf0000017" ] worked
– jbnunn
May 3 '12 at 15:43
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jQuery loop over JSON result from AJAX Success?
On the jQuery AJAX success callback I want to loop over the results of the object. This is an example of how the response looks in Firebug.
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How to write a Python module/package?
...ny folder with an __init__.py is considered a module by python and you can call them a package
|-HelloModule
|_ __init__.py
|_ hellomodule.py
You can go about with the import statement on your module the usual way.
For more information, see 6.4. Packages.
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How to get the return value from a thread in python?
...motive make?
If you really want join() to return the return value of the called function, you can do this with a Thread subclass like the following:
from threading import Thread
def foo(bar):
print 'hello {0}'.format(bar)
return "foo"
class ThreadWithReturnValue(Thread):
def __init_...