import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class Main extends MIDlet implements CommandListener {
private Command exit;
private Command perexodT;
private Command perexodL;
private Command perexodA;
private Display mydisplay;
  public void startApp(){
Display mydisplay = Display.getDisplay(this);
Command exit = new Command("exit",Command.EXIT,1);
Command perexodT=new Command("nextT",Command.SCREEN,2);
Form myform = new Form("Forma vvod");
myform.addCommand(exit);
myform.addCommand(perexodT);
myform.setCommandListener(this);
mydisplay.setCurrent(myform);}
 
   public void pauseApp(){}
public void destroyApp(boolean unconditional){}
 
 public void CommandAction(Command c,Displayable d) { 
if (c==exit){destroyApp(false);notifyDestroyed();}
if (c==perexodT){TextBox t=new TextBox("textbox","t",256,0);
perexodL= new Command("nexl",Command.SCREEN,2);
t.addCommand(exit); 
t.addCommand(perexodL);
t.setCommandListener(this);
Display.getDisplay(this).setCurrent(t);}
if (c==perexodL){List mylist=new List("list",List.IMPLICIT);
perexodA=new Command("nextA",Command.SCREEN,2);
mylist.addCommand(exit);
mylist.addCommand(perexodA);
mylist.setCommandListener(this);
Display.getDisplay(this).setCurrent(mylist);}
Alert myalert =new Alert("alert","al",null,null);
Display.getDisplay(this).setCurren(myalert);}}