Handling scroll bar

import java.applet.Applet;

import java.awt.event.*;

import java.awt.*;

/*<applet code=scroller.class width=350 height=400></applet>*/

public class scroller extends Applet implements AdjustmentListener                                                   

                                                                        

{

  TextField text1,text2;

  Label lab1,lab2;

  Scrollbar scroll1,scroll2;

  Button reset;

  public void init()

   {

     lab1=new Label("Horizontal scrollbar :",Label.CENTER);

     add(lab1);

     text1=new TextField(25);

     add(text1);

     lab2=new Label("   Vertical scrollbar :",Label.CENTER);

     add(lab2);

     text2=new TextField(25);

     add(text2);

     scroll1=new Scrollbar(Scrollbar.HORIZONTAL,1,10,1,100);

     add(scroll1);

     scroll1.addAdjustmentListener(this);

     scroll2=new Scrollbar(Scrollbar.VERTICAL,1,10,1,100);

     add(scroll2);

     scroll2.addAdjustmentListener(this);

    }

public void actionPerformed(ActionEvent e)

  {

             if(e.getSource()==reset)

                {

                scroll1.setValue(0);

                scroll2.setValue(0);

               } 

   }

 public void adjustmentValueChanged(AdjustmentEvent e)

  {

                if(e.getAdjustable()==scroll1)

                  {

                                scroll1.setValue(scroll1.getValue());

                                text1.setText("Horizontal position: "+scroll1.getValue());

                   }

                if(e.getAdjustable()==scroll2)

                  {

                                 scroll2.setValue(scroll2.getValue());

                                 text2.setText("Vertical position: "+scroll2.getValue());

                   }

   }