import java.io.IOException;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class LCDui2 extends MIDlet implements CommandListener
{
private Display display;
private Form form;
private Image image;
private Command next;
private Command back;
private int slideNum;
private int maxSlideNum=5;

 public void startApp() {
 display = Display.getDisplay(this);
 form = new Form(null);
 form.setCommandListener(this);
 next = new Command("Next", Command.OK, 1);
 form.addCommand(next);
 back = new Command("Back", Command.BACK, 1);
 form.addCommand(back);
 Ticker t = new Ticker("Photoalbum");
form.setTicker(t);
 setImage("/1.png");
 display.setCurrent(form);
 }

 public void commandAction(Command c, Displayable d) {
  if (c == next && slideNum < maxSlideNum)
  slideNum++;
  if (c == back && slideNum > 1)
  slideNum--;
  form.delete(0);
  setImage("/"+Integer.toString(slideNum)+".png");
 }

 public void setImage(String path)
 {
  try {
   image = Image.createImage(path);
  }
  catch (IOException ioe) {
   System.out.println(ioe.getMessage());
  form.append(image);
  }
 }

 public void pauseApp() {
 }

 public void destroyApp(boolean unconditional) {
 }

}