Hi

I want to rotate one class of balls

I saw this

http://bazaar.launchpad.net/~philho/+junk/Processing/view/head:/_QuickExperiments/Rotations/Rotations.pde

but still don't know how to deal with that if I have a class;

////////Here is my class code

class Station {
  int radius;
  int numberSt;
  int xx, yy;
  Station(int n, int centx, int centy, int rad) {
    xx = centx;
    yy = centy;
    numberSt = n;
    radius = rad;
    ellipseMode(CENTER);
  }
  void display() {
    float degreeInc = 2.0*( PI / numberSt);
    int count = -1;
    int[] pointsx = new int[ numberSt + 1];
    int[] pointsy = new int[ numberSt + 1];
    int smallRad = 10;
    for ( float deg = 0; deg < 2*PI; deg = deg + degreeInc)
    { 

      int dy = int(radius * sin(deg));
      int dx = int(radius * cos(deg));
      ellipse(xx+dx, yy+dy, smallRad, smallRad);
      count++;
      pointsx[count] = xx+dx;
      pointsy[count] = yy+dy;
    }
  }
}

/////main code is

int numberSt=3;
int numStations =4;
Station[] stations= new Station[numStations];

void setup() {
  size(600, 600);
  background(0);
  smooth();
  ellipseMode(CENTER);
  stations[0] = new Station(numberSt, 100, 100, 50);
  stations[1] = new Station(numberSt, 300, 100, 50);
  stations[2] = new Station(numberSt, 100, 300, 50);
  stations[3] = new Station(numberSt, 300, 300, 50);
}

void draw() {
  fill(0, 20);
  rect(0, 0, width, height);
  for (int i = 0; i <numStations; i++)
  {
   for (float c=0; c<2*PI; c+= 0.01){
     pushMatrix();
     translate(100,100);
     rotate(c);
      fill(255, 100);
      stations[0].display();
     popMatrix();
      }
      for (float c=0; c<2*PI; c+= 0.01){
     pushMatrix();
     translate(300,100);
     rotate(c);
      fill(255, 100);
      stations[1].display();
     popMatrix();
      }
        for (float c=0; c<2*PI; c+= 0.01){
     pushMatrix();
     translate(100,300);
     rotate(c);
      fill(255, 100);
      stations[2].display();
     popMatrix();
      }
        for (float c=0; c<2*PI; c+= 0.01){
     pushMatrix();
     translate(300,300);
     rotate(c);
      fill(255, 100);
      stations[3].display();
     popMatrix();
      }
  }
}

I try to put rotate(); inside the class, but didn't workout (-"-)