Random Graph Lines With Save Output

RandomLineChart

int a =300;
int b= 775;

int numberOfTimes = 1;
boolean randomColor = false;

int s = second();  
int m = minute();  
int h = hour();   

color c;

void setup() {

  size(b, a);
}

void draw() {
  colorMode(HSB, 100);
  color c = color(89, 87, 87);
  background(0);
  for (int j=0;j<numberOfTimes;j++) {
    pushMatrix();
    ArrayList<PVector> al = new ArrayList();

    for (int i=5; i<=b; i+=5) {
      al.add( new PVector(i, random(10, a-10), 10) );
    }

    translate(10, height-10);
    scale(1, -1);

    if (randomColor) stroke(c);//stroke(random(100),100,100); 
    strokeWeight(2);
    for (int i=1; i<al.size(); i++) {
      if (!randomColor) stroke(0, 0, 30);
      line(al.get(i-1).x, al.get(i-1).y, al.get(i).x, al.get(i).y);
    }
    popMatrix();
  }
  saveFrame(h+m+s+".png");
  stop();
}