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When is it right for a constructor to throw an exception?
...hat supports one-stage construction, where the object is fully initialized and usable after construction.
One-stage constructors should throw if they fail to fully initialize the object. If the object cannot be initialized, it must not be allowed to exist, so the constructor must throw.
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Relative imports in Python 2.7
... is that there is a big difference between directly running a Python file, and importing that file from somewhere else. Just knowing what directory a file is in does not determine what package Python thinks it is in. That depends, additionally, on how you load the file into Python (by running or b...
What are the default access modifiers in C#?
...ult access modifier for classes, methods, members, constructors, delegates and interfaces?
9 Answers
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Can “git pull --all” update all my local branches?
I often have at least 3 remote branches: master, staging and production. I have 3 local branches that track those remote branches.
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What is memory fragmentation?
... symptom of memory fragmentation is that you try to allocate a large block and you can't, even though you appear to have enough memory free. Another possible consequence is the inability of the process to release memory back to the OS (because each of the large blocks it has allocated from the OS, f...
How to unit test a Node.js module that requires other modules and how to mock the global require fun
...a very simple api which allows resolving the module you are trying to test and pass along mocks/stubs for its required modules in one simple step.
@Raynos is right that traditionally you had to resort to not very ideal solutions in order to achieve that or do bottom-up development instead
Which is...
Difference between a Seq and a List in Scala
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In Java terms, Scala's Seq would be Java's List, and Scala's List would be Java's LinkedList.
Note that Seq is a trait, which is equivalent to Java's interface, but with the equivalent of up-and-coming defender methods. Scala's List is an abstract class that is extended by...
IE9 border-radius and background gradient bleeding
IE9 is apparently able to handle rounded corners by using the CSS3 standard definition of border-radius .
17 Answers
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Why doesn't java.util.Set have get(int index)?
... itself. Two of the three commonly used implementations of List (ArrayList and Vector) are random-access, but that does not make random access a property of Lists.
– Michael Myers♦
Aug 5 '12 at 4:29
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What is 'Context' on Android?
In Android programming, what exactly is a Context class and what is it used for?
30 Answers
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