J2ME ImageSlideShow

import javax.microedition.midlet.*;

import javax.microedition.lcdui.*;

public class imageSlideShow extends MIDlet implements CommandListener {

    public Form slide1;

    public Form slide2;

    public Form slide3;

    public Command Exit;

    public Display display;

    public Image image1;

    public Image image2;

    public Image image3;

    public ImageItem imageitem1;

    public ImageItem imageitem2;

    public ImageItem imageitem3;

        public imageSlideShow()

    {

display=Display.getDisplay(this);

            try

            {

                image1=Image.createImage("/1.png");

                image2=Image.createImage("/2.png");

                image3=Image.createImage("/3.png");

                imageitem1=new ImageItem(null,image1,ImageItem.LAYOUT_CENTER,"image1");

                imageitem2=new ImageItem(null,image2,ImageItem.LAYOUT_CENTER,"image2");

                imageitem3=new ImageItem(null,image3,ImageItem.LAYOUT_CENTER,"image3");

            }

            catch(Exception ex)           {             }

       

        Exit=new Command("Exit",Command.EXIT,1);

        slide1=new Form("Slide1");

        slide1.append(imageitem1);

        slide1.addCommand(Exit);

        slide2=new Form("Slide2");

        slide2.append(imageitem2);

        slide2.addCommand(Exit);

        slide3=new Form("Slide3");

        slide3.append(imageitem3);

        slide3.addCommand(Exit);

        slide1.setCommandListener(this);

        slide2.setCommandListener(this);

        slide3.setCommandListener(this);

    }

    public void startApp() {

        Thread runner = new Thread(new ThreadRunner(display,slide1,slide2,slide3));

      runner.start();

    }

    public void pauseApp() {    }

    public void destroyApp(boolean unconditional) {    }

    public void commandAction(Command command,Displayable displayable)

    {

        if(displayable==slide1)

        {             if(command==Exit)                notifyDestroyed();         }

        else if(displayable==slide2)        {            if(command==Exit)                notifyDestroyed();        }

        else if(displayable==slide3)        {            if(command==Exit)                notifyDestroyed();        }

    }

}

class ThreadRunner implements Runnable {

  Display display;

  public int c=0;

  public Form slide1;

  public Form slide2;

  public Form slide3;

   public  ThreadRunner(Display display,Form slide1,Form slide2,Form slide3) {

    this.display = display;

    this.slide1=slide1;

    this.slide2=slide2;

    this.slide3=slide3;

  }

  public void run() {      while(true)       {      c++;       if(c==1)              display.setCurrent(slide1);

      else if(c==2)          display.setCurrent(slide2);

      else if(c==3)          display.setCurrent(slide3);

      else if(c==4)          c=0;

      try      {      Thread.sleep(1500);          }

      catch(Exception ex)      {      }

      }

  }

 

}