Need help

this is wad i have currently and i also have another problem which is that the ballValue and boxValue beside the scrollbar does not refresh...

import java.awt.*;
import java.applet.*;
import java.awt.event.*;

public class Division extends Applet implements AdjustmentListener {
int ballValue=0;
int boxValue=0;
int extra,noex;
Scrollbar ball,box;
Panel p1;

public void adjustmentValueChanged(AdjustmentEvent event){
ballValue = ball.getValue();
boxValue = box.getValue();
repaint();
}
public void init() {

p1 = new Panel();
p1.setLayout(new GridLayout(2,3));
p1.add(new Label("Enter number of balls : "));
p1.add(ball = new Scrollbar(Scrollbar.HORIZONTAL,0,1,0,501));
p1.add(new Label(""+ballValue));
p1.add(new Label("Enter number of boxes : "));
p1.add(box = new Scrollbar(Scrollbar.HORIZONTAL,0,1,0,11));
p1.add(new Label(""+boxValue));
add(p1);
ball.addAdjustmentListener(this);
box.addAdjustmentListener(this);

}



public void paint(Graphics g) {
extra= ballValue%boxValue;
noex= ballValue/boxValue;

if((ballValue%boxValue==0)||(boxValue==1))
{ g.drawString("Each box contains "+noex+" ball(s).",100,100);}

else if(boxValue>ballValue)
{ g.drawString("Not enough balls for "+boxValue+" boxes!!",100,100);}

else{
g.drawString("Can't divide "+ballValue+" balls equally into "+boxValue+" boxes!!",100,100);
g.drawString("There are "+extra+" balls left after division!!",100,120);
}
}
}