Action when mouse is held down over graphical elements

Hi All,
I need the colour of a load of circles to change when the mouse is pressed and hovering over them. (Not just when mouse clicked)
Here my code for colouring when clicked :
public void mousePressed(MouseEvent e) {
int circleIndex = -1;
for (int i = 0; i < v.size(); i++) {
Ellipse2D aCircle = (Ellipse2D) v.elementAt(i);
if (aCircle.contains(e.getX(), e.getY())) {
System.out.println("You clicked inside the NEW circle");
circleIndex = i;
on[i] = circleIndex;
System.out.println("on[i] : " + on);
repaint();
System.out.println("index = " + circleIndex);
Thanks in Advance

This will help, but you will have to add code for 'hovering'. (If you search the forums, I'm pretty sure someone has done it before)
http://java.sun.com/docs/books/tutorial/uiswing/events/mousemotionlistener.html

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Action when mouse is held down over graphical elements

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