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Re:Learning to Program the Arduino by randomdata on Wednesday April 11, 2012 @10:07PM (#3830671)
They are different. Processing is built on Java, Arduino is built on C++.
Re:Learning to Program the Arduino by bigiain on Wednesday April 11, 2012 @10:20PM (#3830716)
That's true for the _languages_, but the Arduino development environment is built on Processing, see second para here:

http://arduino.cc/