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Allowed characters in filename [closed]
...bitten by that once when I shortened an include file from const.h to con.h and spent half an hour figuring out why the compiler hung.
Turns out DOS ignored extensions for devices so that con.h was exactly the same as con, the input console (meaning, of course, the compiler was waiting for me to typ...
bash: shortest way to get n-th column of output
...repeatedly encounter the following form of columnized output from some command in bash (in my case from executing svn st in my Rails working directory):
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Append an object to a list in R in amortized constant time, O(1)?
...oldlist, list(someobj))
In general, R types can make it hard to have one and just one idiom for all types and uses.
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Exploitable PHP functions
...lowed. Rather, I'd like to have a grep -able list of red-flag keywords handy when searching a compromised server for back-doors.
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What is the main difference between PATCH and PUT request?
...d by browsers. So, I want to know what the main difference between PATCH and PUT requests are, and when we should use one or the other.
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Android: What is better - multiple activities or switching views manually?
I have developed some apps for Android, and this questions stays always:
7 Answers
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Creating a new dictionary in Python
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Is there any difference between dict() and {}? Or do people just prefer one over the other?
– Matt
Mar 2 '12 at 17:13
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How to check if Location Services are enabled?
I'm developing an app on Android OS. I don't know how to check if Location Services are enabled or not.
22 Answers
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Double vs. BigDecimal?
I have to calculate some floating point variables and my colleague suggest me to use BigDecimal instead of double since it will be more precise. But I want to know what it is and how to make most out of BigDecimal ?
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Optimistic vs. Pessimistic locking
I understand the differences between optimistic and pessimistic locking. Now could someone explain to me when I would use either one in general?
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