you like?

on the program 'processing' (downloaded at processing.org) i made a program style thing.

:

void setup() {
size(800, 800);
stroke(255);
fill(random(255), random(255), random(255));
}

void draw() {
ellipse(400, 400, mouseX, mouseY);
}

void mousePressed() {
background(random(255), random(255), random(255));
fill(random(255), random(255), random(255));
}


though now i have a question to ask you intelligent people, how do i make it do it randomly instead of by mouse movement?