Java by API/javax.microedition.lcdui/Choice
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>