PPT Slide
/* Signatures Needed for Listener Interfaces */
public void mouseMoved(MouseEvent e) {}
public void mouseClicked(MouseEvent e) {}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mousePressed(MouseEvent e) {
anchor = new Point(e.getX(),e.getY());
System.out.println("Too many lines.");
public void mouseReleased(MouseEvent e) {
addline(e.getX(),e.getY());