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Java serialization: readObject() vs. readResolve()
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readResolve is used for replacing the object read from the stream. The only use I've ever seen for this is enforcing singletons; when an object is read, replace it with the singleton instance. This ensures that nobody can create another instance by serializing and deserializ...
What is the difference between procedural programming and functional programming? [closed]
...;
# in this case it is rather pointless as
# it can't even be accessed from outside
my $result = 1;
loop ( ; $n > 0 ; $n-- ){
$result *= $n;
}
return $result;
}
D 2
int factorial( int n ){
int result = 1;
for( ; n > 0 ; n-- ){
result *= n;
}
return result...
Import and Export Excel - What is the best library? [closed]
...- export becomes irrelevant with SpreadsheetML. The data is all accessible from within the file. If you need the data in a different format, provide a transform via an XSLT or via Linq.
– Todd Main
Apr 28 '10 at 6:23
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make_unique and perfect forwarding
...an simply be a class instead of function. For example, see my blog article from May 2010. It's also linked to from the discussion on Herb's blog.
– Cheers and hth. - Alf
May 12 '12 at 13:42
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How to tell if a tag failed to load
...it should be ok to only support this on next gen browsers for KISS IMHO).
From the spec:
If the src attribute's value is the
empty string or if it could not be
resolved, then the user agent must
queue a task to fire a simple event
named error at the element, and
abort these steps.
~...
Extract a part of the filepath (a directory) in Python
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And you can continue doing this as many times as necessary...
Edit: from os.path, you can use either os.path.split or os.path.basename:
dir = os.path.dirname(os.path.dirname(file)) ## dir of dir of file
## once you're at the directory level you want, with the desired directory as the final p...
What Makes a Method Thread-safe? What are the rules?
...ly not. You can write a program with only a single local variable accessed from a single thread that is nevertheless not threadsafe:
https://stackoverflow.com/a/8883117/88656
Does that apply for static methods as well?
Absolutely not.
One answer, provided by @Cybis, was: "Local variables ...
Android - Setting a Timeout for an AsyncTask?
...have an AsyncTask class that I execute that downloads a big list of data from a website.
7 Answers
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How to create a subdirectory for a project QtCreator?
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Can I do this nesting from the IDE or do I have to manually set those files and dirs?
– gruszczy
Jul 24 '09 at 12:19
1
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Why is my Spring @Autowired field null?
... top of your answer that explains that retrieving the first bean, the root from which you do everything, should be done through the ApplicationContext. Some users (for which I've closed as duplicates) don't understand this.
– Sotirios Delimanolis
Oct 18 '14 at ...