Ticker class

import javax.microedition.midlet.MIDlet;
import javax.microedition.lcdui.*;
public class TickerList extends MIDlet implements CommandListener

{
 private Display d;
 private List list;
 private final String tech;
 private final String movies;
 private Ticker t;
 private Command exit;
 private Command submit;
 public TickerList()
 {
  d=Display.getDisplay(this);
  tech=new String("c  c++ java sap android");
  movies=new String("jalsa athadu chennai express");
  exit=new Command("Exit", Command.SCREEN,1);
  submit=new Command("Submit", Command.SCREEN,1);
  t=new Ticker(tech);
  list=new List("News", Choice.EXCLUSIVE);
  list.append("Technology",null);
  list.append("Movies",null);
  list.addCommand(exit);
  list.addCommand(submit);
  list.setCommandListener(this);
  list.setTicker(t);
}
public void startApp()
{
 d.setCurrent(list);
}
public void pauseApp()
{
}
public void destroyApp(boolean b)
{
}
public void commandAction(Command c,Displayable dd)
{
 if(c==exit)
 {
   destroyApp(true);
   notifyDestroyed();
 }
 else if(c==submit)
 {
  if(list.getSelectedIndex()==0)
  {
   t.setString(tech);
  }
  else
  {
   t.setString(movies);
  }
}
}
}