Assignment 9-4
// 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{

  
/************************************************************************

Declare private classes for display, a Form, Exit and View Commands and A ChoiceGroup


***************************************************************************/

  // contructor
  public ChoiceGrImages(){
    
/***********************************************************************

get the display for this midlet
create the command objects
add the commands
append the choiceGroup item to the form
setCommandListener to this midlet

**********************************************************************/
    
    // try and catch exceptions whilst creating image items

    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


  }


/******************************************************

startApp( )
set the Form as current display

******************************************************/


/**************************************************

pauseApp( )


*****************************************************/

/*************************************************

DestroyApp( )

************************************************/

  // 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();
    }
  }
}