Java Tutorial/J2ME/CheckBox

Add CheckBoxes to a Form

   <source lang="java">

import javax.microedition.lcdui.Choice; import javax.microedition.lcdui.ChoiceGroup; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Form; import javax.microedition.lcdui.StringItem; import javax.microedition.midlet.MIDlet; public class J2MECheckBoxes extends MIDlet implements CommandListener {

 private Display display;
 private Form form = new Form("Movies");
 private Command exit = new Command("Exit", Command.EXIT, 1);
 private Command process = new Command("Process", Command.SCREEN, 2);
 private ChoiceGroup movies = new ChoiceGroup("Select Movies You Like to See", Choice.MULTIPLE);
 private int movieIndex;
 public J2MECheckBoxes() {
   display = Display.getDisplay(this);
   movies.append("A", null);
   movies.append("R", null);
   movies.append("C", null);
   movies.append("H", null);
   movieIndex = form.append(movies);
   form.addCommand(exit);
   form.addCommand(process);
   form.setCommandListener(this);
 }
 public void startApp() {
   display.setCurrent(form);
 }
 public void pauseApp() {
 }
 public void destroyApp(boolean unconditional) {
 }
 public void commandAction(Command command, Displayable displayable) {
   if (command == process) {
     boolean picks[] = new boolean[movies.size()];
     StringItem message[] = new StringItem[movies.size()];
     movies.getSelectedFlags(picks);
     for (int x = 0; x < picks.length; x++) {
       if (picks[x]) {
         message[x] = new StringItem("", movies.getString(x) + "\n");
         form.append(message[x]);
       }
     }
     form.delete(movieIndex);
     form.removeCommand(process);
   } else if (command == exit) {
     destroyApp(false);
     notifyDestroyed();
   }
 }

}</source>