Hello,
I have a problem with a class in processing. Here is my code:

1. Buttons[] Button = new Buttons[1];
2. public class Buttons {
3. public int x;
4. }
5. void setup(){
6. size(480, 800);
7. orientation(PORTRAIT);
8. }
9. void draw(){
10.   Button[0].x = 10;
11.   fill(0);
12.   text(Button[0].x,10,10);
13. }

And my Error is: NullPointerException. Why?