​

function setup() {

  createCanvas(400, 400);

  // create a for loop to draw 200 bubbles!

  for(let i = 0; i < 200; i++){

  bubble[i] = new Bubble();

  }

}

​

function draw() {

  background(220);

  for(let i = 0; i < 200; i++){

  bubble[i].show();

  }

}

​

class Bubble{

  constructor(){

    this.bubbleX = random(width);

    this.bubbleY = random(height); 

  }

  show(){

    ellipse(this.bubbleX, this.bubbleY, 20, 20);

  }

}