Problemas com eventos.. de botao

OLa estou com problemas no seguinte codigo estou começando programa e Java (MVC)
e DOIS arquivos

ESTE É PRIEMIRO ARQUIVO  A TELA…

import javax.swing.<em>;

import javax.swing.JInternalFrame;

import java.awt.</em>;

import java.awt.event.ActionListener;

/**
*

• @author Horibe
  
  */
  
  public class GuiCadForn extends JInternalFrame {
  
  private JLabel lRazaoForn;
  
  private JLabel lCnpjForn;
  
  private JLabel lEndForn;
  
  private JLabel lEmailForn;
  
  private JLabel  lTelForn;
  
  private JLabel lNomeVendedor;
  
  private JLabel lTelVendedor;
  
  private JLabel lCidadeForn;
  
  private JLabel lCepForn;
  
  private JLabel lUfForn;
  
  private JLabel lDiaVizita;
  
  private JLabel lDiaEntrega;
  
  protected JTextField tfRazaoForn;
  
  private JTextField tfCnpjForn;
  
  private JTextField tfEndForn;
  
  private JTextField tfEmailForn;
  
  private JTextField tfTelForn;
  
  private JTextField tfNomeVendedor;
  
  private JTextField tfTelVendedor;
  
  private JTextField tfCidadeForn;
  
  private JTextField tfUfForn;
  
  private JTextField tfCepForn;
  
  private JTextField tfDiaVizita;
  
  private JTextField tfDiaEntrega;
  
  private JButton btEnvia;
  
  protected JButton btLimpa;
  
  private Dimension d;
  
  public GuiCadForn(){
  
  super(“Teste”, true,true,true,true);
  
  d = new Dimension();
  
  d = Toolkit.getDefaultToolkit().getScreenSize();
  
  this.setLayout(null);
  
  this.setVisible(true);
  
  this.setBounds(0,0,d.width,d.height);
  
  lRazaoForn = new JLabel("Razão : ");
  
  this.add(lRazaoForn).setBounds(d.width = 20,d.height = 15,d.width = 55,d.height = 20);
  
  tfRazaoForn = new JTextField(60);
  
  this.add(tfRazaoForn).setBounds(d.width = 80,d.height = 15,d.width = 400,d.height = 20);
  
  lCnpjForn = new JLabel("CNPJ : ");
  
  this.add(lCnpjForn).setBounds(d.width = 500,d.height = 15,d.width = 40,d.height = 20);
  
  tfCnpjForn = new JTextField(16);
  
  this.add(tfCnpjForn).setBounds(d.width = 560,d.height = 15,d.width = 150,d.height = 20);
  
  lEndForn = new JLabel("Endereço : ");
  
  this.add(lEndForn).setBounds(d.width = 20,d.height = 60,d.width = 70,d.height = 20);
  
  tfEndForn = new JTextField(120);
  
  this.add(tfEndForn).setBounds(d.width = 100,d.height = 60,d.width = 610,d.height = 20);
  
  lCidadeForn = new JLabel("Cidade : ");
  
  this.add(lCidadeForn).setBounds(d.width = 20,d.height = 105,d.width = 60,d.height = 20);
  
  tfCidadeForn = new JTextField(60);
  
  this.add(tfCidadeForn).setBounds(d.width = 90,d.height = 105,d.width = 300,d.height = 20);
  
  lCepForn = new JLabel("CEP : ");
  
  this.add(lCepForn).setBounds(d.width = 420,d.height = 105,d.width = 80,d.height = 20);
  
  tfCepForn = new JTextField(8);
  
  this.add(tfCepForn).setBounds(d.width = 480,d.height = 105,d.width = 100,d.height = 20);
  
  lUfForn = new JLabel("UF : ");
  
  this.add(lUfForn).setBounds(d.width = 610,d.height = 105,d.width = 35,d.height = 20);
  
  tfUfForn = new JTextField(2);
  
  this.add(tfUfForn).setBounds(d.width = 665,d.height = 105,d.width = 45,d.height = 20);
  
  lTelForn = new JLabel("Telefone : ");
  
  this.add(lTelForn).setBounds(d.width = 20, d.height = 150,d.width = 60,d.height = 20);
  
  tfTelForn = new JTextField(10);
  
  this.add(tfTelForn).setBounds(d.width = 90, d.height = 150, d.width = 180,d.height = 20);
  
  lEmailForn = new JLabel("Email : ");
  
  this.add(lEmailForn).setBounds(d.width = 300,d.height = 150, d.width = 200,d.height = 20);
  
  tfEmailForn = new JTextField(100);
  
  this.add(tfEmailForn).setBounds(d.width = 360,d.height = 150, d.width = 350, d.height = 20);
  
  lNomeVendedor = new JLabel("Nome do Vendedor : ");
  
  this.add(lNomeVendedor).setBounds(d.width = 20, d.height = 195, d.width = 180, d.height = 20);
  
  tfNomeVendedor = new JTextField(60);
  
  this.add(tfNomeVendedor).setBounds(d.width = 150, d.height = 195, d.width = 250, d.height = 20);
  
  lTelForn = new JLabel ("Telefone : ");
  
  this.add(lTelForn).setBounds(d.width = 430, d.height = 195, d.width = 100, d.height = 20);
  
  tfTelForn = new JTextField(10);
  
  this.add(tfTelForn).setBounds(d.width = 510, d.height = 195, d.width = 200, d.height = 20);
  
  lDiaVizita = new JLabel("Dia de Vizita : ");
  
  this.add(lDiaVizita).setBounds(d.width = 20, d.height = 240, d.width = 200, d.height = 20);
  
  tfDiaVizita = new JTextField(30);
  
  this.add(tfDiaVizita).setBounds(d.width = 120, d.height = 240, d.width = 200, d.height = 20);
  
  lDiaEntrega = new JLabel ("Dia de Entrega : ");
  
  this.add(lDiaEntrega).setBounds(d.width = 360, d.height = 240, d.width = 200, d.height = 20);
  
  tfDiaEntrega = new JTextField(30);
  
  this.add(tfDiaEntrega).setBounds(d.width = 480, d.height = 240,d.width = 200, d.height = 20);
  
  btEnvia = new JButton(“Cadastrar”);
  
  this.add(btEnvia).setBounds(d.width = 200, d.height = 340, d.width = 120, d.height = 30);
  
  btLimpa = new JButton(“Limpar”);
  
  this.add(btLimpa).setBounds(d.width = 480, d.height = 340, d.width = 120, d.height = 30);
  
  }
  

  public void addLimpa(ActionListener e) {
  
  this.btLimpa.addActionListener(e);      / O PROBLEMA ESTA AKI/
  
  }
  

}

SEGUNDO ARQUIVO CONTROLE

public class ControllerCadForn extends GuiCadForn{

private GuiCadForn gCadForn = null;

ControllerCadForn(){

gCadForn = new GuiCadForn();

gCadForn.addLimpa(new EventoLimpar());

new GuiCadForn();

}

class EventoLimpar implements ActionListener{

public void actionPerformed (ActionEvent evento){

if(evento.getSource() == gCadForn.btLimpa ){

JOptionPane.showMessageDialog(null, “Funcionando”);

tfRazaoForn.setText("");

}
}

}
}

NAO ESTOU CONSEGUINDO ADD O EVENDO AO BOTAO… ALGUEM AI TEM UMA LUZ PARA ME DAR