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What is a “Bitmap heap scan” in a query plan?
... de BernardyDenis de Bernardy
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Search an Oracle database for tables with specific column names?
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200
To find all tables with a particular column:
select owner, table_name from all_tab_columns whe...
How to delete a stash created with git stash create?
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404
To delete a normal stash created with git stash , you want git stash drop or git stash drop sta...
What is a “cache-friendly” code?
...erb Sutter's talk on machine architecture (youtube) (specifically check 12:00 and onwards!).
Slides about memory optimization by Christer Ericson (director of technology @ Sony)
LWN.net's article "What every programmer should know about memory"
Main concepts for cache-friendly code
A very important...
How does mockito when() invocation work?
... sense.
– marchaos
Jan 22 '13 at 11:06
@marchaos It doesn't know. With the when(mock.method()).thenXyz(...) syntax, mo...
Incompatible implicit declaration of built-in function ‘malloc’
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answered Aug 13 '11 at 13:50
cnicutarcnicutar
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How does setting baselineAligned to false improve performance in LinearLayout?
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Clyde
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answered Feb 16 '12 at 23:42
Nima GNima G
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How do I get the first n characters of a string without checking the size or going out of bounds?
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Here's a neat solution:
String upToNCharacters = s.substring(0, Math.min(s.length(), n));
Opinion: while this solution is "neat", I think it is actually less readable than a solution that uses if / else in the obvious way. If the reader hasn't seen this trick, he/she has to think ...
Comparing boxed Long values 127 and 128
...bject comparisons.
Reference links:
https://today.java.net/pub/a/today/2005/03/24/autoboxing.html
https://blogs.oracle.com/darcy/entry/boxing_and_caches_integer_valueof
http://java.dzone.com/articles/surprising-results-autoboxing
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How can I determine the type of an HTML element in JavaScript?
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answered Oct 31 '08 at 17:33
pkaedingpkaeding
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