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How do I use a PriorityQueue?
... inserts an element if possible, otherwise returning
false. This differs from the Collection.add method, which can fail to
add an element only by throwing an unchecked exception. The offer
method is designed for use when failure is a normal, rather than
exceptional occurrence, for example, i...
mkdir -p functionality in Python [duplicate]
Is there a way to get functionality similar to mkdir -p on the shell from within Python. I am looking for a solution other than a system call. I am sure the code is less than 20 lines, and I am wondering if someone has already written it?
...
What are the differences between Generics in C# and Java… and Templates in C++? [closed]
...t; foo = new List<Person>();
and then the compiler will prevent you from putting things that aren't Person into the list.
Behind the scenes the C# compiler is just putting List<Person> into the .NET dll file, but at runtime the JIT compiler goes and builds a new set of code, as if you ...
Is “Java Concurrency In Practice” still valid? [closed]
...
Yes, it's still valid in my mind. There isn't big change in this area from 6 to 7. Fork-join is a new feature, which is very suitable for divide-and-conquer type of problems. But all the existing stuff inside the book, such as synchronization, volatile, servlet, are still very valid.
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What is the best (idiomatic) way to check the type of a Python variable? [duplicate]
...s if somebody passes a unicode string to your function? Or a class derived from dict? Or a class implementing a dict-like interface? Following code covers first two cases. If you are using Python 2.6 you might want to use collections.Mapping instead of dict as per the ABC PEP.
def value_list(x):
...
What are important languages to learn to understand different approaches and concepts? [closed]
...me if I'm wrong, but I think Python sortof does continuations already. And from what I have read, I'd rather learn Factor and Objective-C than Forth and Smalltalk, but I might be cutting corners there.
– Pepijn
Oct 18 '10 at 11:58
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Why is the .bss segment required?
...(In detail, the address of the objects in .bss would probably be different from the address if it was in the .data segment.)
In the first program, a would be in the .data segment and b would be in the .bss segment of the executable. Once the program is loaded, the distinction becomes immaterial. ...
Java Generics: Cannot cast List to List? [duplicate]
...t;? extends Tree> b1 = a1;
... because then you can only fetch things from b1, and they're guaranteed to be compatible with Tree. You can't call b1.add(...) precisely because the compiler won't know whether it's safe or not.
Have a look at this section of Angelika Langer's Java Generics FAQ fo...
Facebook access token server-side validation for iPhone app
...oken you want to verify, and ACCESS_TOKEN is your app's token that you got from step 1.
The debug endpoint basically dumps all information about a token, so it'll respond with something like this:
{
data: {
app_id: YOUR_APP_ID,
is_valid: true,
metadata: {
ss...
How do I compile a Visual Studio project from the command-line?
...path. Either start the Visual Studio build environment and run your script from there, or modify the paths in Python (with os.putenv).
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