Create Classes in Proseccing

Kykloi k1, k2, k3, k4, k5, k6, k7, k8, k9;

int prosimo = 1;

void setup() {
  size(600, 600);
  smooth();
  // Inputs: x, y, speed
  k1 = new Kykloi(0, 20, prosimo*5);
  k2 = new Kykloi(0, 50, prosimo*9);
  k3 = new Kykloi(0, 80, prosimo*3);
  k4 = new Kykloi(0, 110, prosimo*7);
  k5 = new Kykloi(0, 140, prosimo*2);
  k6 = new Kykloi(0, 170, prosimo*23);
  k7 = new Kykloi(0, 200, prosimo*6);
  k8 = new Kykloi(0, 230, prosimo*8);
  k9 = new Kykloi(0, 260, prosimo*12);
}
void draw() {
  background(0);
  k1.update();
  k2.update();
  k3.update();
  k4.update();
  k5.update();
  k6.update();
  k7.update();
  k8.update();
  k9.update();
}

void mousePressed()  {
}
class Kykloi {
  int x, y, s;
  Kykloi(int xpos, int ypos, int speed) {
    x = xpos;
    y = ypos;
    s = speed;
  }
  void update() {
    x = x + s;
    ellipse(x, y, 20, 20);
    if (x>600) x = 0;
  }
}