Hi guys. For some reason every method for parent but random() seems to work for me. It's weird because I've tried other projects that also called parent.random() and they work fine. I use Eclipse to program.

Here's the error message:
Exception in thread "Animation Thread" java.lang.NullPointerException
    at Video.<init>(Video.java:22)
    at sketch_jun1.setup(sketch_jun1.java:13)
    at processing.core.PApplet.handleDraw(Unknown Source)
    at processing.core.PApplet.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

And here is the class where the error is found.

1. import processing.core.PApplet;
2. import processing.core.PImage;
3. public class Video {
4.     int w, h, x, y, littleX, littleY, bigX, bigY, savedXSpeed, savedYSpeed, circleW, circleH;
5.     float xSpeed, ySpeed;
6.     PImage myImage;
7.     PApplet parent;
8.     boolean tooBig = false;
9.    
10.     public Video(PApplet p, int xx, int yy, PImage img) {
11.        x = xx;
12.        littleX = xx;
13.        y = yy;
14.        littleY = yy;
15.        w = 120;
16.        h = 90;
17.        circleW = w + 20;
18.        circleH = h + 20;
19.        bigX = x + w + 6;
20.        bigY = y + h + 6;
21.        xSpeed = parent.random(1);
22.        ySpeed = parent.random(-1);
23.        parent = p;
24.        myImage = img;
25.     }
26.      
27.     public void display() {
28.        parent.noStroke();
29.        parent.fill(250, 0, 0, 50);
30.        parent.ellipse(x+60, y+45, circleW, circleH);
31.        parent.image(myImage,x,y);
32.       }
33.    
34.     public void move() {
35.         x += xSpeed;
36.         y += ySpeed;
37.             if (x + w > bigX || x < littleX)
38.                 xSpeed *= -1;
39.             if (y + h> bigY || y < littleY)
40.                 ySpeed *= -1;
41.     }
42.    
43.     public void increaseSize(){
44.         circleW = circleW + 4;
45.         circleH = circleH + 4;
46.     }
47.    
48.     public void decreaseSize(){
49.         circleW--;
50.         circleH--;
51. }

Thanks in advance. :)