How can I make my line an arrow in my clock drawing?

Question

I'm creating an analog clock in Java and I just want to add some more detail. How can I transform a normal line into an arrow like some clocks have?

For example, here's what my hour hand coding looks like:

private void drawHourHand(Graphics2D g) {
    int hLength = (int)(radius * 0.5);
    int xHour
        = (int)(xCenter
                + hLength
                      * Math.sin(
                            (hour % 12 + minute / 60.0)
                            * (2 * Math.PI / 12)));
    int yHour
        = (int)(yCenter
                - hLength
                      * Math.cos(
                            (hour % 12 + minute / 60.0)
                            * (2 * Math.PI / 12)));
    g.setColor(Color.BLACK);
    g.drawLine(xCenter, yCenter, xHour, yHour);
}

How would I go about adding to this code and still make it continue to run as normal?