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WPF Application that only has a tray icon
...plication that starts minimized to tray. The idea is that it periodically fetches an RSS Feed and creates a Toaster-Popup when there are new feeds.
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Why should Java ThreadLocal variables be static
...omething like objects that are scoped to a User Conversation, Web Request, etc. You don't want them also sub-scoped to the instance of the class.
One web request => one Persistence session.
Not one web request => one persistence session per object.
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Confusion: @NotNull vs. @Column(nullable = false) with JPA and Hibernate
...ich ORM(s) recognize JSR 303 annotations like @NotNull, @Size, @Min, @Max, etc., and translate those into database constraints.
– Ryan Stewart
Sep 16 '11 at 3:30
1
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When should I use double instead of decimal?
... than Decimal, support for transcendental operations (e.g. sin(x), log(x), etc.), and precision which while not quite as good as Decimal would be way better than double.
– supercat
Sep 3 '13 at 16:58
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Getting multiple keys of specified value of a generic Dictionary?
...ithout very careful thought - but it could certainly implement IEnumerable etc. In fact, it could implement IDictionary<TFirst, TSecond> and IDictionary<TSecond, TFirst>.
– Jon Skeet
Nov 5 '08 at 19:47
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How to get the current date/time in Java [duplicate]
...te / time in a form that allows you to access the components (year, month, etc) numerically, you could use one of the following:
new Date() gives you a Date object initialized with the current date / time. The problem is that the Date API methods are mostly flawed ... and deprecated.
Calendar.get...
Unit testing code with a file system dependency
...its dependencies. It doesn't test that the zip file was unzipped properly, etc.
You have hit the nail right on its head. What you want to test is the logic of your method, not necessarily whether a true file can be addressed. You don´t need to test (in this unit test) whether a file is correctly ...
Are Java static calls more or less expensive than non-static calls?
...( duration, test );
printStream.printf( "%15s | %10d\n", test.getClass().getSimpleName(), iterations );
}
}
long runTest( int duration, Test test ) throws Exception
{
test.terminate = false;
test.count = 0;
Thread thread = new Thread( test );
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Difference between a Seq and a List in Scala
...ns.unmodifiableList() and similarly there are other methods for Sets, Maps etc. docs.oracle.com/javase/6/docs/api/java/util/…
– jbx
Nov 14 '13 at 16:16
27
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Rails respond_with: how does it work?
...e. Can anyone either explain to me how it works (what options you can use, etc) or point me to the place it's actually implemented so I can peruse the code on my own?
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