Exemplo de Midlet

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import java.util.Date;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;


/**
 * @author agilar
 */
public class CadastroCliente extends MIDlet {
    private Display display;
    private Form frmCadastro;
    private TextField txtNome, txtEndereco, txtFone, txtEmail;
    private DateField txtDtCadastro;
    private ChoiceGroup sexo, casado;

    private void createGUI(){
        txtNome = new TextField("Nome", "", 70, TextField.ANY);
        frmCadastro.append(txtNome);

        txtEndereco = new TextField("Endereço", "", 70, TextField.ANY);
        frmCadastro.append(txtEndereco);

        txtFone = new TextField("Fone", "", 20, TextField.PHONENUMBER);
        frmCadastro.append(txtFone);

        txtEmail = new TextField("E-mail", "", 30, TextField.EMAILADDR);
        frmCadastro.append(txtEmail);

        txtDtCadastro = new DateField("Data Cadastro", DateField.DATE);
        txtDtCadastro.setDate(new Date());
        frmCadastro.append(txtDtCadastro);
        
        sexo = new ChoiceGroup("Sexo", ChoiceGroup.EXCLUSIVE);
        sexo.append("Masculino", null);
        sexo.append("Feminino", null);
        frmCadastro.append(sexo);
        
        casado = new ChoiceGroup("Casado", ChoiceGroup.EXCLUSIVE, new String[] {"Sim", "Não"}, null);
        frmCadastro.append(casado);

    }

    public void startApp() {
        display = Display.getDisplay(this);
        frmCadastro = new Form("Cadastro de Clientes");
        createGUI();
        display.setCurrent(frmCadastro);
    }

    public void pauseApp() {
    }

    public void destroyApp(boolean unconditional) {
    }
}