Nee help in changing de radio button

Question

the output wil have the radio button, but i d0n wan the radio button.. wat shld i change?
change to List izit? when i change to List, there's sumtin wron with my fm3.append(imageItem);
thx
import java.io.*;
import java.util.*;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import javax.microedition.rms.*;
public class Screensaver extends MIDlet implements CommandListener {
     // declare the form
     private Form fm1;
     private Form fm2;
     private Form fm3;
     // declare image
     private Image pix;
     private ImageItem imageItem;
     // declare commands
     private Command okayCommand;
     private Command backCommand;
     private Command cancelCommand;
     private Command saveCommand;
     // declare display
     private Display display;
     // Choice Group of preferences
     private ChoiceGroup choice;
     // declare TextField, RecordStore
     private TextField tx_field;
     private RecordStore record;
     // declare byteArray
     ByteArrayOutputStream output = new ByteArrayOutputStream();
     task tasking = new task();
Timer timer = new Timer();
int currentId=1;
int timeInterval=1000;
boolean u = false;
public Screensaver()
          display = Display.getDisplay(this);
// Specify a font face, style and size
//Font font = Font.getFont(Font.FACE_PROPORTIONAL, Font.STYLE_PLAIN, Font.SIZE_MEDIUM);
          okayCommand = new Command("OK",Command.SCREEN,1);
          backCommand = new Command("Back", Command.BACK, 0);
          cancelCommand = new Command("Cancel", Command.BACK,0);
          saveCommand = new Command("Save",Command.SCREEN,1);
//startApp()
public void startApp()
          // form for the main menu
          fm1 = new Form(".: Main Menu :.");
          choice = new ChoiceGroup("Choice Label", Choice.EXCLUSIVE);
          choice.append("Start Screensaver",null);
          choice.append("Options",null);
          choice.append("Exit",null);
          fm1.append(choice);
          fm1.addCommand(okayCommand);
          fm1.setCommandListener(this);
          // form for option
          fm2 = new Form(".: Options :.");
          // create new textfield to enter time interval
          tx_field = new TextField("Time Interval(sec)","",5,TextField.ANY);
          fm2.append(tx_field);
          // saveCommand to save the time interval
          fm2.addCommand(saveCommand);
          fm2.addCommand(backCommand);
          fm2.setCommandListener(this);
          //form for the screensaver
          fm3 = new Form(".: Screensaver :.");
          fm3.addCommand(backCommand);
          fm3.setCommandListener(this);
          display.setCurrent(fm1);
          // cannot stop the screensaver//
//pauseApp()
public void pauseApp()
//destroyApp()     
public void destroyApp(boolean u)
          notifyDestroyed();
// handle commands to change time interval and to display menu again
public void commandAction(Command c, Displayable d)
          // saving the time interval
          if (c == saveCommand)
               Integer inter = new Integer(0);
               timeInterval = inter.parseInt(tx_field.getString());
               timeInterval = timeInterval * 1000;
               // display menu again
               display.setCurrent(fm1);
          // backCommand, will return to main menu, setCurrent(fm1)
          else if (c == backCommand)
               // display menu again
               display.setCurrent(fm1);
          else if (c == okayCommand)
               // getSelectedIndex() ==0, means the 1st icon is selected (start screensaver)
               if (choice.getSelectedIndex() == 0)
                    display.setCurrent(fm3);     
                    timer.schedule(tasking, 0, timeInterval);
               // the option is selected, so display fm2
               else if (choice.getSelectedIndex() == 1)
                    // display screensaver
                    display.setCurrent(fm2);
               // exit option is selected, so us destroyApp
               else
                    boolean testing = true;
                    // exit
                    this.destroyApp(testing);
public class task extends TimerTask {
     public void saveEntry (String entry_E) throws RecordStoreException {
          byte [] data = entry_E.getBytes();
          record.addRecord (data, 0, data.length);
public void run(){
                    // de nx 4lines determine whether the pix cn move anot..
                              if(fm3.size()==1)
                                             fm3.delete(fm3.size()-1);
     try {
                         // open recordstore
                         record = RecordStore.openRecordStore ("screensaver", true);
                              if(u==false)
                              this.saveEntry("/1.png");
                                   this.saveEntry("/2.png");
                                   this.saveEntry("/3.png");
                                   this.saveEntry("/4.png");
                         output.write(record.getRecord(currentId),0,record.getRecord(currentId).length);
               catch (RecordStoreException e)
               try {     
                         // layout of image
                         pix = pix.createImage(output.toString());
                         // Convert the image to immutable
                         imageItem = new ImageItem(null, pix, ImageItem.LAYOUT_CENTER |
                         ImageItem.LAYOUT_NEWLINE_AFTER | ImageItem.LAYOUT_NEWLINE_BEFORE,"(Image)");
               catch (IOException e)
               // display imageItem to fm3(screensaver)
               fm3.append(imageItem);
               currentId++;
               u = true;
               output.reset();
               // 4pix, so currentId==5
               if(currentId==5)
               {   //display currentId==1 1st (1st pix)
                    currentId=1;
}

Answer 1

did u chk my reply..
"the "group" the radio buttons will be placed in. Radio buttons in the same group will have mutually exclusive selection, regardless of their physical placement on the page. See selectOneRadio - it groups the radios automatically. The reason you would use selectBooleanRadio instead of selectOneRadio is that you have more control over the placement of each radio. Using a selectBooleanRadio alone is uncommon; in any case, you must set the group attribute."
http://jdevadf.oracle.com/adf-richclient-demo/docs/tagdoc/af_selectBooleanRadio.html