Mouse Events

• Call repaint when you modify the shapes that paintComponent draws

  box.setLocation(x, y);
  repaint();

• Mouse listener: if the mouse is pressed, listener moves the rectangle to the mouse location

  class MousePressListener implements MouseListener
  {
     public void mousePressed(MouseEvent event)
     {
        int x = event.getX();
        int y = event.getY();
        component.moveTo(x, y);
     }
     // Do-nothing methods
     public void mouseReleased(MouseEvent event) {}
     public void mouseClicked(MouseEvent event) {}
     public void mouseEntered(MouseEvent event) {}
     public void mouseExited(MouseEvent event) {}
  }

• All five methods of the interface must be implemented; unused methods can be empty