import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.TextBox;
import javax.microedition.midlet.MIDlet;
public class J2MEOnlineHelp extends MIDlet implements CommandListener {
private Display display;
private Command back = new Command("Back", Command.BACK, 2);
private Command exit = new Command("Exit", Command.EXIT, 1);
private Command help = new Command("Help", Command.HELP, 3);
private Form form = new Form("Online Help Example");
private TextBox helpMesg;
public J2MEOnlineHelp() {
display = Display.getDisplay(this);
helpMesg = new TextBox("Online Help","Press Back to return .",81, 0);
helpMesg.addCommand(back);
form.addCommand(exit);
form.addCommand(help);
form.setCommandListener(this);
helpMesg.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 == back) {
display.setCurrent(form);
} else if (command == exit) {
destroyApp(false);
notifyDestroyed();
} else if (command == help) {
display.setCurrent(helpMesg);
}
}
}