looks like the i++ shouldnt be here :

1.    rect(i++,j,1,20);

cause you are counting up i twice within every loop...

Yes, thanks for your help its working :)

Sorry, but I have another question: (

The code works but only with a rect that  has the width of 1px.
So now I do not like a rect with a width of 1px, but with a form that is 20px x 20px.

I can not find out, unfortunately, how can I get more space between the singel forms.

1. //for importing csv files into a 2d array
2. //by che-wei wang
3. void setup() {
4.   size(800, 800);
5.   noStroke();
6.   smooth();
7. 
   
8.  
9. }
10. 
    
11. void draw() {
12. PShape s;
13. PShape s1;
14. s = loadShape("Test.svg");
15. s1 = loadShape("Test2.svg");
16. 
    
17. background(255);
18. String lines[] = loadStrings("Test.csv");
19. String [][] csv;
20. int csvWidth=0;
21. 
    
22. //shape(s, 10, 10, 80, 80);
23. //calculate max width of csv file
24. for (int i=0; i < lines.length; i++) {
25.   String [] chars=split(lines[i],','); 
26.   if (chars.length>csvWidth){
27.     csvWidth=chars.length;
28.   }  
29. }
30. 
    
31. //create csv array based on # of rows and columns in csv file
32. csv = new String [lines.length][csvWidth];
33. 
    
34. //parse values into 2d array
35. for (int i=0; i < lines.length; i++){
36.   String [] temp = new String [lines.length];
37.   temp= split(lines[i], ',');
38.   for (int j=0; j < temp.length; j++){
39.     
40.    csv[i][j]=temp[j];
41.  
42. 
    
43.   println(j);
44.  
45.    if(temp[j].equals("electro")){
46.    fill(255,200,0);  
47.    shape(s, i, j, 20, 20);
48.    }
49.    
50.    if(temp[j].equals("rock")){
51.    fill(255,0,0);   
52.    shape(s1, i, j, 20, 20);
53.     }
54.     
55.    if(temp[j].equals("alternativ")){
56.    fill(0,0,255);  
57.    rect(i,j,1,20);
58.    }
59.  
60.    if(temp[j].equals("hip hop")){
61.    fill(0,0,0);   
62.    rect(i,j,1,20);
63.    }
64.  
65.    if(temp[j].equals("soundtrack")){
66.    fill(0,190,25);   
67.    rect(i,j,1,20);
68.    }
69.  
70.    if(temp[j].equals("live")){
71.   fill(0,255,200);   
72.    rect(i,j,1,20);
73.    }
74.  
75.    if(temp[j].equals("jazz")){
76.    fill(170,30,130); 
77.    rect(i,j,1,20);
78.    }
79.   
80.    if(temp[j].equals("pop")){  
81.    fill(255,0,255);   
82.    rect(i,j,1,20);
83.    }
84.   
85. noLoop();
86. }
87. }
88. }