How do i do change the color(complete newbie)

Question

i want to have a special button inside the applet which will automatically change the color from red to yellow,
HELP!!!
import java.awt.*;
import java.applet.Applet;
import java.awt.event.*;
public class Cookie extends Applet
    implements AdjustmentListener {
    private Scrollbar slider;
    private int sliderValue;
    public void init () {
        slider = new Scrollbar(Scrollbar.HORIZONTAL,0,1,0,51);
        add(slider);
        slider.addAdjustmentListener(this);
    public void paint (Graphics g) {
        showStatus("Scrollbar value is " + sliderValue);
          g.setColor(Color.black);
          g.drawRect(60, 60, 60, 100);
          g.setColor(Color.red);
          g.fillRect(60, 160-sliderValue, 60, sliderValue);
        g.fillRect(60, 60, 60, sliderValue);
    public void adjustmentValueChanged(AdjustmentEvent e) {
        sliderValue = slider.getValue();
        repaint();
}

Answer 1

This seems awfully familiar!
Add a boolean to keep track of color.
Your "special button" will have fire off an actionEvent, in actionPerformed set your boolean to true or false.
In the paint method check for true or false of the boolean and setColor accordingly.