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Detect whether there is an Internet connection available on Android [duplicate]
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1430
The getActiveNetworkInfo() method of ConnectivityManager returns a NetworkInfo instance repres...
What happens when there's insufficient memory to throw an OutOfMemoryError?
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145
The JVM never really runs out of memory. It does memory computation of the heap stack in advanc...
How to construct a relative path in Java from two absolute paths (or URLs)?
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ryenus
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answered Oct 15 '08 at 17:32
Adam CrumeAdam Crume
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Measure elapsed time in Swift
...uptimeNanoseconds // <<<<< Difference in nano seconds (UInt64)
let timeInterval = Double(nanoTime) / 1_000_000_000 // Technically could overflow for long running tests
print("Time to evaluate problem \(problemNumber): \(timeInterval) seconds")
return theAnswer
}
Old ans...
Is There a Better Way of Checking Nil or Length == 0 of a String in Ruby?
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224
When I'm not worried about performance, I'll often use this:
if my_string.to_s == ''
# It's n...
Count table rows
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242
SELECT COUNT(*) FROM fooTable;
will count the number of rows in the table.
See the reference...
setBackground vs setBackgroundDrawable (Android)
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403
It's deprecated but it still works so you could just use it. But if you want to be completly c...
What does |= (ior) do in Python?
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edited Sep 24 at 0:32
answered Jan 9 '18 at 1:52
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How to save CSS changes of Styles panel of Chrome Developer Tools?
...file(s) and start editing to get Chrome apply the local version (date 201604.12).
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Trust Store vs Key Store - creating with keytool
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354
The terminology is a bit confusing indeed, but both javax.net.ssl.keyStore and javax.net.ssl.tru...