# Problem with Coding Train 9.4

I’m trying to implement Daniel’s example of the bubbles array and I can’t for the life of me figure out why it’s not working. I should be getting 3 ascending bubbles, but I’m only getting 1, which I suspect might be all 3 on top of each other. Any help would be appreciated!

Bubble Class:

``````class Bubble {
float x;
float y;
float diameter;

Bubble(float tempD) {
x = random(width);
y = height;
diameter = tempD;
}

void ascend() {
y--;
}
void display() {
stroke(0);
fill(127);
ellipse(x, y, diameter, diameter);
}
}
``````

Bubbles Sketch:

``````Bubble[] bubbles = new Bubble[2];

int i;

void setup() {
size(640, 360);
for (int i = 0; i < bubbles.length; i++) {
bubbles[i] = new Bubble(30);
}
}

void draw() {
background(255);
fill(0);
for (int i = 0; i < bubbles.length; i++);
{
bubbles[i].ascend();
bubbles[i].display();
}
}
``````
1 Like

using the `</> Prefromatted text` button from the editor header menu

why not link to the book chapter / video / code
so we not have to search

please find the changes, different coding style …

``````//___________________________________________________________________Bubble Class:

class Bubble {
float x,y,diam;
Bubble(float _diam) {
x = random(width);
y = height;
diam = _diam;
}

void ascend() {
y--;
}

void display() {
stroke(0);
fill(127);
ellipse(x, y, diam, diam);
ascend();
}
}

//_______________________________________________________________________Bubbles Sketch:

Bubble[] bubbles = new Bubble[2];

void setup() {
size(640, 360);
for (int i = 0; i < bubbles.length; i++ )  bubbles[i] = new Bubble(30);
}

void draw() {
background(255);
for (int i = 0; i < bubbles.length; i++)  bubbles[i].display();
}

``````

your array only long 2, means index 0 , 1 only
why you not print

``````println(bubbles.length);
``````
1 Like