let stars = [];

function setup() {

  createCanvas(400, 400);

  for (

    let i = 0; i < 100; i = i+1){

  stars.push(new Star(random(400), random (400), 5));

  }

  }

​

function draw() {

  background(220);

 for(

    let i = 0; i < stars.length; i = i+1)

 { stars[i].update();

 }

}

class Star{

  constructor(x,y,s){

  this.x = x;

  this.y = y;

  this.s = s;

​

  }

  update(){

    ellipse(this.x,this.y,this.s,this.s);

  }

}