1. for( i=0; i<20;i++) {
2.       img[i]=loadImage("img"+(i+1));
3. }

1. img[i]=loadImage("img"+(i+1)+".jpg");

Now I've got another question.. With objects of a class it doesn't work like this.. I know that I can make an arrayList and go on like this:

1. for(int i=0;i<points.size();i++) {    
2.  Point thisPoint =(Point) points.get(i);
     thisPoint.display();
   }

But I don't wanna do it with an arrayList, I'd like to to it just with objects of this class.

I can't write

Point point1=new Point(x,y,z);
Point point2=new Point(x,y,z);  for (int i=0;i<10;i++) {
 "point"+i.display();
 }
i

1. Point[] points = new Point[10];
2. points[0] = Point(x,y,z);
3. points[1] = Point(x,y,z);
4. for (int i=0;i<points.length;i++) {
5.  points[i].display();
6.  }

2. Point[] points = new Point[10];
3. 
   
4. void setup() {
5.   size(500, 500, P3D);
6. 
   
7.   points[0] = new Point(1, 2, 3);
8.   points[1] = new Point(3, 5, 6);
9. }
10. 
    
11. void draw() {
12.   for (int i = 0; i < points.length; i++) {
13.     if (points[i] != null)
14.       points[i].display();
15.   }
16. }
17. 
    
18. class Point {
19.   int x,y,z;
20.   Point(int xpos, int ypos, int zpos) {
21.     x = xpos;
22.     y = ypos;
23.     z = zpos;
24.   }
25. 
    
26.   void display() {
27.     point(x, y, z);
28.   }
29. }

1. Point[] points;
   
   void setup() {
     size(500,500,P3D);
     points = new Point[10];
     points[0] = new Point(1,2,3);
     points[1] = new Point(3,5,6);
   }
   
   
   void draw() {
   
     for (int i=0;i<2;i++) {
       points[i].display();
     }
   }
   
   class Point
   {
     int x,y,z;
     Point(int xpos,int ypos,int zpos) {
       x=xpos;
       y=ypos;
       z=zpos;
     }
   
     void display()
     {
       point(x,y,z);
     }
   }