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Java: notify() vs. notifyAll() all over again
...dlock, however, in this case the use of notify does not guarantee deadlock-free code. The use of notifyAll does.
– xagyg
Jul 15 '10 at 22:51
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Where to use EJB 3.1 and CDI?
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Yes, you can freely mix both CDI and EJB and achieve some great results. It sounds like you are using @WebService and @Schedule, which are good reasons for adding EJB to the mix.
There's a lot of confusion out there, so here is some gen...
Common programming mistakes for Clojure developers to avoid [closed]
...ometimes use do in super-concise anonymous functions which are side-effect free... It tends to be obvious that they are at a single glance. A matter of taste, I guess.
– Michał Marczyk
Jan 8 '10 at 14:31
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How do I set up DNS for an apex domain (no www) pointing to a Heroku app?
...ld be as Heroku now handles SSL certificates for you automatically and for free for all applications running on paid dynos.
If you're not using HTTPS, you can just set up a 301 Redirect record with most DNS providers pointing name www to http://example.com.
If you are using HTTPS, you'll most like...
Design Patterns web based applications [closed]
... normal servlets (see also servlets wiki for a basic example, which you're free to refactor further into some Validator interface). But you could also do it before invoking the action, but this is more complex as it requires the validation rules being known on a per-view basis. JSF has covered this ...
How to return a string value from a Bash function
...bash, version 3.2.57(1)-release (x86_64-apple-darwin14) Copyright (C) 2007 Free Software Foundation, Inc.), it is correct that a matching global variable is initialized, but when I try to side-effect the same variable in another function f2, that side-effect is not persisted. So, it seems very incon...
mongodb group values by multiple fields
...ress1"
}
I didn't quite get your expected result format, so feel free to modify this to one you need.
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Setting an object to null vs Dispose()
...e collector is able to find objects which can no longer be referenced, and free them. It doesn't look for garbage all the time though - only when it detects that it needs to (e.g. if one "generation" of the heap runs out of memory).
The twist is finalization. The garbage collector keeps a list of o...
Algorithm for classifying words for hangman difficulty levels as “Easy”,“Medium”, or “Hard”
...nks to Colonel Panic in comments for pointing out that correct guesses are free in hangman—I totally forgot this in my first attempt!)
4. Implementation
Here's an implementation of this algorithm in Python:
from collections import defaultdict
from string import ascii_lowercase
def partition(gu...
What are the differences between Perl, Python, AWK and sed? [closed]
...leasant language.
Perl. Any programming problem of any kind. If you like free-thinking syntax, where there are many, many ways to do the same thing, perl is fun.
Python. Any programming problem of any kind. If you like fairly limited syntax, where there are fewer choices, less subtlety, and (pe...