Java by API/javax.microedition.lcdui/Choice

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Choice.EXCLUSIVE

   <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 J2MERadioButtons1 extends MIDlet implements CommandListener {

 private Display display;
 private Form form = new Form("Gender");
 private Command exit = new Command("Exit", Command.EXIT, 1);
 private Command process = new Command("Process", Command.SCREEN, 2);
 private ChoiceGroup gender = new ChoiceGroup("Enter Gender", Choice.EXCLUSIVE);
 private int currentIndex;
 private int genderIndex;
 public J2MERadioButtons1() {
   display = Display.getDisplay(this);
   gender.append("Female", null);
   currentIndex = gender.append("Male ", null);
   gender.setSelectedIndex(currentIndex, true);
   genderIndex = form.append(gender);
   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 == exit) {
     destroyApp(false);
     notifyDestroyed();
   } else if (command == process) {
     currentIndex = gender.getSelectedIndex();
     StringItem message = new StringItem("Gender: ", gender.getString(currentIndex));
     form.append(message);
     form.delete(genderIndex);
     form.removeCommand(process);
   }
 }

}

 </source>
   
  
 
  



Choice.IMPLICIT

   <source lang="java">
  

import javax.microedition.lcdui.Choice; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.List; import javax.microedition.midlet.MIDlet; public class Main extends MIDlet {

 private String[] capabilitiesIdx = { "microedition.media.version", "supports.mixing",
     "supports.audio.capture", "supports.video.capture", "supports.recording", "audio.encodings",
     "video.encodings", "video.snapshot.encodings", "streamable.contents" };
 public void startApp() {
   List list = new List("Audio/Video Capabilities", Choice.IMPLICIT);
   for (int i = 0; i < capabilitiesIdx.length; ++i) {
     list.append(System.getProperty(capabilitiesIdx[i]) + " - " + capabilitiesIdx[i], null);
   }
   Display.getDisplay(this).setCurrent(list);
 }
 public void pauseApp() {
 }
 public void destroyApp(boolean unconditional) {
 }

}


 </source>