Hello, here is the code:

1. ArrayList pointList; 
2. void setup()
3. {
4.   size(1024,768,P3D);
5.   pointList = new ArrayList();
6.    importTextFile();
7.   
8. }
9. void draw()
10. {
11.     background(255,255,255);
12.     stroke(0,0,0);
13.     for(int i = 0; i < pointList.size(); ++i){
14.          for(int y = i+1; y < pointList.size(); ++y){     
15.     PVector V = (PVector) pointList.get(i);
16.     PVector B = (PVector) pointList.get(y);
17.     line(V.x, V.y, V.z, B.x, B.y,B.z);
18.           }
19.           }
20. }
21. void importTextFile(){  
22.   String[] Coorddessin = loadStrings("Coorddessin.txt");
23.   for(int i = 0; i < Coorddessin.length; ++i){
24.     String[] arrTokens = split(Coorddessin[i], ',');     
25.     float xx = float(arrTokens[0]);                    
26.     float yy = float(arrTokens[1]);                    
27.     float zz = float(arrTokens[2]);  
28.     pointList.add( new PVector(xx,yy,zz) );       
29.   }
30. }

It does not work..can anybody help me?
(There is no errormessage, the programm runs, and the screen stays white, no drawing is created..)