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Mod of negative number is melting my brain
...don't think this is accurate and I don't see why a modulo is any different from remainder. That's what it also says on the Modulo Operation Wikipedia page. It's just that programming languages treat negative numbers differently. The modulo operator in C# obviously counts remainders "from" zero (-9%4...
IDEA: javac: source release 1.7 requires target release 1.7
...
Most likely you have incorrect compiler options imported from Maven here:
Also check project and module bytecode (target) version settings outlined on the screenshot.
Other places where the source language level is configured:
Project Structure | Project
Project Structur...
Reset the database (purge all), then seed a database
...verything and recreate database + seeds with both:
rake db:reset: loads from schema.rb
rake db:drop db:create db:migrate db:seed: loads from migrations
Make sure you have no connections to db (rails server, sql client..) or the db won't drop.
schema.rb is a snapshot of the current state of you...
Dynamically set local variable [duplicate]
...til you call locals().
In the C implementation of Python locals() (called from inside a function) creates an ordinary dictionary initialised from the current values of the local variables. Within each function any number of calls to locals() will return the same dictionary, but every call to locals...
How do I break out of a loop in Scala?
....control.Breaks using syntax that looks a lot like your familiar old break from C/Java:
import scala.util.control.Breaks._
var sum = 0
breakable { for (i <- 0 to 1000) {
sum += i
if (sum >= 1000) break
} }
(3) Put the code into a method and use return.
var sum = 0
def findSum { for (i ...
PHP: Storing 'objects' inside the $_SESSION
... whole cloth based on data stashed in hidden form fields, or re-query them from the DB each time, you are using state. HTTP is stateless (more or less; but see GET vs. PUT) but almost everything anybody cares to do with a web app requires state to be maintained somewhere. Acting as if pushing the ...
Convert char to int in C and C++
... ((int)'0'), which means the ascii values of the characters are subtracted from each other. Since 0 comes directly before 1 in the ascii table (and so on until 9), the difference between the two gives the number that the character a represents.
...
Android: I am unable to have ViewPager WRAP_CONTENT
... height
*
* @return The height of the view, honoring constraints from measureSpec
*/
private int measureHeight(int measureSpec, View view) {
int result = 0;
int specMode = MeasureSpec.getMode(measureSpec);
int specSize = MeasureSpec.getSize(measureSpec);
...
Is Dvorak typing appropriate for programming? [closed]
...hrough thousands of source code lines ensuring that a good fit was found. (from kaufmann.no/roland/dvorak)
– GabrielF
Feb 25 '16 at 13:43
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With Git, how do I turn off the “LF will be replaced by CRLF” warning
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will turning off the warning prevent git from replacing lf by crlf? @chronial
– aidonsnous
Sep 29 '16 at 11:05
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