// This midlet shows a choice group with associated strings and images

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.io.IOException;
public class ChoiceGrImages extends MIDlet implements CommandListener{

  private Display display; // a display
  private Form fmMain; // a form
  private Command cmExit; // exit command
  private Command cmView; // view command
  private ChoiceGroup cgPref; // choice group of preferences

  // contructor
  public ChoiceGrImages(){
    display = Display.getDisplay(this);

    // add commands
    cmExit = new Command("Exit", Command.EXIT, 1);
    cmView = new Command("cmView", Command.SCREEN, 2);

    try{
      // create an array of image objects
      Image img[] = {Image.createImage("/res/redcircle.png"), Image.createImage(
      "/res/greencircle.png"), Image.createImage("/res/bluecircle.png")};

            // Create string object to associate with the images
            String opt[] = {"Red Circle", "Green Circle", "Blue Circle"};

            // Create choice group using array
            cgPref = new ChoiceGroup("Select Color:", Choice.EXCLUSIVE, opt, img);
    }
    catch (java.io.IOException e){
      System.err.println("Unable to locate or read .png file");
    }

    // create form, add components, listen for events

    fmMain = new Form(" ");
    fmMain.addCommand(cmExit);
    fmMain.addCommand(cmView);
    fmMain.append(cgPref);
    fmMain.setCommandListener(this);
  }

  // start app
  public void startApp(){
    display.setCurrent(fmMain);
  }

  // pause app
  public void pauseApp(){

  }

  // destroy app
  public void destroyApp(boolean unconditional){

  }

  // commandAction
  public void commandAction(Command c, Displayable s){
    if(c == cmView){
      boolean selected[] = new boolean[cgPref.size()];

      // Fill array showing if any item has been checked
      cgPref.getSelectedFlags(selected);

      // print to console the status of each element
      for(int i = 0; i<cgPref.size(); i++)
        System.out.println(cgPref.getString(i) + (selected[i] ? ": selected" :
                                                   ": not selected"));
    }
    else if (c == cmExit){
      destroyApp(false);
      notifyDestroyed();
    }
  }
}