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Why should I not wrap every block in “try”-“catch”?
...f a method can throw an exception then it is reckless not to protect this call with a meaningful try block.
16 Answers
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How does push notification technology work on Android?
...itiated by the Google Play application. That's why Google Play must be installed on the device for making Google Cloud Messaging (GCM) (formerly Android Cloud to Device Messaging Service - C2DM) work.
When this TCP client socket receives some message, the message contains information such as the pa...
Should I prefer pointers or references in member data?
... be null. This can be an advantage, but if the code ever needs changing to allow rebinding or for the member to be null, all uses of the member need to change
unlike pointer members, references can't easily be replaced by smart pointers or iterators as refactoring might require
Whenever a reference ...
How do I update an entity using spring-data-jpa?
... object your found. These changes will be flushed to the database automatically at the end of transaction, so that you don't need to do anything to save these changes explicitly.
EDIT:
Perhaps I should elaborate on overall semantics of JPA. There are two main approaches to design of persistence AP...
In Unix, how do you remove everything in the current directory and below it?
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Because you are specifically matching a named directory and are thus less likely to delete something that you don't intend to delete.
– tvanfosson
May 4 '09 at 16:27
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What is the difference between call and apply?
What is the difference between using call and apply to invoke a function?
24 Answers
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What should I do if two libraries provide a function with the same name generating a conflict?
...either of them you can wrap one of them up. That is compile another (statically linked!) library that does nothing except re-export all the symbols of the original except the offending one, which is reached through a wrapper with an alternate name. What a hassle.
Added later: Since qeek says he's ta...
Changing .gitconfig location on Windows
...r, to give it the effect you desire, you need to pass the --global flag to all git invocations (plus any local .git/config files are ignored).
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Programming with white text on black background?
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It's actually white on black, or rather green or amber on black, that is the traditional way. I've used them all. :)
I believe that the use of black on white started in word processors, because it's a lot easier on your eyes when you...
What is the difference between RDF and OWL? [closed]
...erence between RDF and OWL. Is OWL an extension of RDF or these two are totally different technologies?
12 Answers
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