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What is the difference between i++ and ++i?
...tly this sort of thing wrong. I get probably half a dozen questions a year from real programmers about why some particular expression chock-full of increments and decrements and array dereferences doesn't work the way they assumed it did.
– Eric Lippert
Jul 27 ...
Modulo operator with negative values [duplicate]
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From ISO14882:2011(e) 5.6-4:
The binary / operator yields the quotient, and the binary % operator
yields the remainder from the division of the first expression by the
second. If the second operand of / or % is zero t...
What REST PUT/POST/DELETE calls should return by a convention?
...g REST over HTTP then RFC7231 describes exactly what behaviour is expected from GET, PUT, POST and DELETE.
Update (Jul 3 '14):
The HTTP spec intentionally does not define what is returned from POST or DELETE. The spec only defines what needs to be defined. The rest is left up to the implementer t...
Is there a max array length limit in C++?
...o a container that would otherwise use up all the available memory.
Apart from that, C++ doesn't enforce any limits.
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How to get a Fragment to remove itself, i.e. its equivalent of finish()?
... so multiple activities can all respond to the "we got the OK click" event from Df.
– CommonsWare
May 5 '11 at 17:18
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How to set a timer in android
... approach can be used, if you want to run a piece of code in the UI thread from an another thread.
if you need to get a call back even if your activity is not running then, you can use an AlarmManager
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read complete file without using loop in java
...uited to Android, @akauppi! Just look for a solution that Android supports from another answer!
– Isaac Woods
Apr 4 '15 at 13:54
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What is the purpose of setting a key in data.table?
...ns of the form x[i] required key to be set on x. With the new on= argument from v1.9.6+, this is not true anymore, and setting keys is therefore not an absolute requirement here as well.
## joins using < v1.9.6
setkey(X, a) # absolutely required
setkey(Y, a) # not absolutely required as long a...
Understanding colors on Android (six characters)
...green and blue respectively).
So by removing the final 55 you're changing from A=B4, R=55, G=55, B=55 (a mostly transparent grey), to R=B4, G=55, B=55 (a fully-non-transparent dusky pinky).
See the "Color" documentation for the supported formats.
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How to determine day of week by passing specific date?
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Days of week start from 1 which is Sunday, so I think Tue would be 3.
– Mohammad Banisaeid
Aug 7 '13 at 12:03
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