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Why does my application spend 24% of its life doing a null check?
I've got a performance critical binary decision tree, and I'd like to focus this question on a single line of code. The code for the binary tree iterator is below with the results from running performance analysis against it.
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How can I read a large text file line by line using Java?
I need to read a large text file of around 5-6 GB line by line using Java.
21 Answers
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Optimising Android application before release [closed]
I'm in a " special " situation about efficiency of my program. Now I'm at a phase where I need to improve the performance of the application and reduce battery consumption .
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How do I pass values to the constructor on my wcf service?
I would like to pass values into the constructor on the class that implements my service.
8 Answers
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What is the difference between new/delete and malloc/free?
...elease memory
Memory allocated from 'Free Store'
Returns a fully typed pointer.
new (standard version) never returns a NULL (will throw on failure)
Are called with Type-ID (compiler calculates the size)
Has a version explicitly to handle arrays.
Reallocating (to get more space) not handled intuiti...
Is Redis just a cache?
I have been reading some Redis docs and trying the tutorial at http://try.redis-db.com/ . So far, I can't see any difference between Redis and caching technologies like Velocity or the Enterprise Library Caching Framework
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Android SDK Manager Not Installing Components
Not sure what I'm doing wrong here. I installed the Android SDK Manager, and am now trying to install a platform like the Android Dev website suggests. Once I clicked install I got an error stating that the Manager could not create a temp folder within the Android directory. So I created it. Now I'm...
“The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine” Error in importing
I have a 64 bit windows 7 and SQLServer 2008 R2 (64 bit)
6 Answers
6
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Given a DateTime object, how do I get an ISO 8601 date in string format?
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Note to readers: Several commenters have pointed out some problems in this answer (related particularly to the first suggestion). Refer to the comments section for more information.
DateTime.UtcNow.ToString("yyyy-MM-ddTHH\\:mm\\:ss.fffffffzzz");
This gives you a d...
Is there a “standard” format for command line/shell help text?
If not, is there a de facto standard? Basically I'm writing a command line help text like so:
8 Answers
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