Java integration in Processing

Question

I have a simple, single-file Java program that functions on it's own just fine, but it's command line only. I wanted to try using Processing to give it an interface and some animations.

Is that possible?

I have .pde with a .java in the same folder so that when I open my sketch I can see the .java in another tab. In my sketch file I threw in some basic setup() and draw(), but when I run it I get an InstantiationException. Has anyone tried something like this successfully?

By the way, I'm referring to Processing.org Processing. processing.org — Michael Gruber
– Michael Gruber, Commented Apr 29, 2012 at 2:19

Jean-François Fabre · Accepted Answer · 2019-05-15 21:10:46Z

1

Just ran a basic test and all compiles fine with Processing 1.5.1 :

void setup(){
  new Test();
}
//Test.java in separate tab
class Test{
  Test(){   System.out.println("Hello!"); }
}

edited May 15, 2019 at 21:10

Jean-François Fabre♦

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answered Apr 29, 2012 at 5:32

George Profenza

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2 Comments

Michael Gruber Over a year ago

The problem I was having (I believe) stemmed from attempting to call a class in my .java file with the same name as my .pde ...Sigh. Oh, well. I changed the name and it worked like a charm. Thank you for the response, though. An up-vote and a check for you, sir.

George Profenza Over a year ago

Thank you very much kind sir :) Btw, the Processing 'IDE' is ok for quick'n'dirty sketches, but at the moment it's more like an enhanced text editor than an IDE, so for larger projects I don't recommend it. One other thing it does is pack all your 'tabs' into a single Java PApplet that gets compiled. If you're comfortable with Java and eclipse I recommend giving the Proclipsing plugin a try. Goodluck !

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