That's strange.
From a freshly downloaded 2.0.1 (32-bit Windows), if I run both mini-sketches as is (in static mode, no setup()), I get:
C:\tmp\untitled4875277725524312515sketches\sketch_130708a
or similar. That's because I haven't saved the sketch, so it points to the temporary sketch folder it creates on the fly.

Ah, a guess...
Yes, I can reproduce your problem with:

1.     File programFolder = new File(sketchPath);
2.    
3.     void setup()
4.     {
5.       println(programFolder.getAbsolutePath());
6.     }

It is a very common error, trying some initializations at the global level (often with variables like width, too).
Code at this level is run before anything else, but width and sketchPath are initialized only when setup() is called. So they are zero and null, respectively, at this time.
Correct code:

1.     File programFolder;
2.    
3.     void setup()
4.     {
5.       programFolder = new File(sketchPath);
6.       println(programFolder.getAbsolutePath());
7.     }