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Understanding checked vs unchecked exceptions in Java
...en. If it is in the UI layer - catch it and show a warning; if it's in the service layer - don't catch it at all - let it bubble. Just don't swallow the exception. If an exception occurs in most of the cases you should choose one of these:
log it and return
rethrow it (declare it to be thrown by t...
What's the Point of Multiple Redis Databases?
...g multiple databases on a single instance. I guess it's useful if multiple services use the same database server(s), so you can avoid key collisions.
I would not recommend building around using the KEYS command, since it's O(n) and that doesn't scale well. What are you using it for that you can acco...
What is the combinatory logic equivalent of intuitionistic type theory?
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Close and Dispose - which to call?
...e threads Is SqlCommand.Dispose enough? and Closing and Disposing a WCF Service I am wondering for classes such as SqlConnection or one of the several classes inheriting from the Stream class does it matter if I close Dispose rather than Close?
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How to deal with a slow SecureRandom generator?
..., but you can enumerate them using Security.getProviders() and Provider.getService().
Sun is fond of SHA1PRNG, so it's widely available. It isn't especially fast as PRNGs go, but PRNGs will just be crunching numbers, not blocking for physical measurement of entropy.
The exception is that if you do...
Algorithm to compare two images
.../04/97.jpg) has gone bad. Note that stackoverflow now has an image hosting service.
– ThomasW
Nov 17 '11 at 0:49
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How do BitTorrent magnet links work?
...a relay - I won't go into details here) and start fetching it.
Resources/Services in P2P networks are not directly attached to network addresses: they are distributed and that is the beauty of these highly scalable networks.
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.gitignore for Visual Studio Projects and Solutions
...esktop.ini
# Recycle Bin used on file shares
$RECYCLE.BIN/
# Mac desktop service store files
.DS_Store
See: Add a default .gitignore file on MSDN
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Difference between System.DateTime.Now and System.DateTime.Today
...s store it in a database, display it on screen, or transmit it using a web service.
If your local time zone follows any daylight savings rules, you do not get that information back from DateTime.Now. In ambiguous times, such as during a "fall-back" transition, you won't know which of the two possi...
Relational Database Design Patterns? [closed]
...tables hold more "cohesive" data? My thinking is that if a large table was servicing writes to 2 kinds of data sets but both are in the same row, this would result in unnecessary lock contention.
– CMCDragonkai
Jul 2 '15 at 17:39
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