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.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class DialogTest extends MIDlet implements CommandListener {
 Display display;

 Form f = new Form("DialogTest");

 Command showCMD = new Command("show", Command.ITEM, 1);

 public DialogTest() {
  super();
  display = Display.getDisplay(this);
  f.addCommand(showCMD);
  f.setCommandListener(this);
  display.setCurrent(f);
 }

 protected void startApp() throws MIDletStateChangeException {
 }

 protected void pauseApp() {
 }

 protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
 }

 public void commandAction(Command c, Displayable d) {
  new work1(c).start();
 }

 class work1 extends Thread {
  Command c;
  
  public work1(Command c) {
   super();
   this.c = c;
  }
  public void run() {
   super.run();
   if(c==showCMD){
    int choose=new Dialog(display).show("Choose","Do you like your Operation?","yes","no");
    if(choose==Dialog.YES){
     f.append("Yes,user like\n");
    }else if(choose==Dialog.NO){
     f.append("No,user like\n");
    }
    display.setCurrent(f);
   }
  }
 }
}