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What is the difference between ArrayList.clear() and ArrayList.removeAll()?
...oints out, c.contains(..) increases the time complexity of removeAll to O(n2) as opposed to clear's O(n).
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Using switch statement with a range of value in each case?
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edited Aug 23 '17 at 14:18
answered Jun 3 '12 at 20:49
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psql invalid command \N while restore sql
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How to find the length of a string in R
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See ?nchar. For example:
> nchar("foo")
[1] 3
> set.seed(10)
> strn <- paste(sampl...
Can you target with css?
...some further investigations, and pointed out that IE8 (on Win7) and Chrome 2/Safari 4b allows you to style BR somewhat. And indeed, I checked the IE demo page with IE Net Renderer's IE8 engine, and it worked.
Update 2
c69 made some further investigations, and it turns out you can style the marker f...
Is there any way to delete local commits in Mercurial?
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Enable the "strip" extension and type the following:
hg strip #changeset# --keep
Where #cha...
How to change owner of PostgreSql database?
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How can I get column names from a table in Oracle?
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Automatic exit from bash shell script on error [duplicate]
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answered May 20 '10 at 4:36
Adam RosenfieldAdam Rosenfield
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