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Average of 3 long integers

...ides all three values (it floors the values, so you 'lose' the remainder), and then divides the remainder: long n = x / 3 + y / 3 + z / 3 + ( x % 3 + y % 3 + z % 3 ) / 3 Note that the above sample does not always work properly when h...
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How to properly create composite primary keys - MYSQL

... gross oversimplification of an intense setup I am working with. table_1 and table_2 both have auto-increment surrogate primary keys as the ID. info is a table that contains information about both table_1 and table_2 . ...
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How to set up Android emulator proxy settings

I want to to use the browser inside the Android emulator, and I want to use the proxy settings on my machine. How can I set this up? ...
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Django - “no module named django.core.management”

I get the following error when trying to run Django from the command line. 21 Answers ...
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Difference between rake db:migrate db:reset and db:schema:load

The difference between rake db:migrate and rake db:reset is pretty clear in my head. The thing which I don't understand is how rake db:schema:load different from the former two. ...
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How do I print the elements of a C++ vector in GDB?

..., 30} To achieve above, you need to have gdb 7 (I tested it on gdb 7.01) and some python pretty-printer. Installation process of these is described on gdb wiki. What is more, after installing above, this works well with Eclipse C++ debugger GUI (and any other IDE using GDB, as I think). ...
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Combining two expressions (Expression)

I have two expressions of type Expression<Func<T, bool>> and I want to take to OR, AND or NOT of these and get a new expression of the same type ...
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Difference between “git add -A” and “git add .”

The command git add [--all|-A] appears to be identical to git add . . Is this correct? If not, how do they differ? 11 An...
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How to inspect FormData?

I've tried console.log and looping through it using for in . 15 Answers 15 ...
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Number of days between two dates in Joda-Time

...ime instances? With ‘difference in days’ I mean if start is on Monday and end is on Tuesday I expect a return value of 1 regardless of the hour/minute/seconds of the start and end dates. ...