Problemas com BD + Swing

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

import com.mysql.jdbc.Connection;
import com.sun.org.apache.xpath.internal.functions.FuncBoolean;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import projetobd.conexao.ConexaoMySql;
import projetobd.empresa.Funcionario;
import projetobd.empresa.Orelha;

/**
 *
 * @author Rafael
 */
public class EmpresaDAO {

    Connection cn;

    public EmpresaDAO() throws SQLException, ClassNotFoundException {
        this.cn = (Connection) ConexaoMySql.getConexao();
    }

    public void insertReg(Funcionario f1) throws SQLException {

        String sql = "insert into funcionario (nome,salario,empresa)"
                + "values (?,?,?)";

        PreparedStatement stm = cn.prepareStatement(sql);
        stm.setString(1, f1.getNome());
        stm.setInt(2, (int) f1.getSalario());
        stm.setString(3, f1.getEmpresa());

        stm.execute();
        stm.close();
        System.out.println("ADICIONADO COM SUCESSO");
    }

    public List<Funcionario> selectReg() throws SQLException {

        String sql = "select * from funcionario";
        PreparedStatement stm = this.cn.prepareStatement(sql);
        ResultSet rSet = stm.executeQuery();

        List<Funcionario> lista = new ArrayList<Funcionario>();

        while (rSet.next()) {

            Orelha c1 = new Orelha();
            c1.setNome(rSet.getString("nome"));
            c1.setId((Integer.parseInt(rSet.getString("id"))));
            c1.setSalario((Integer.parseInt(rSet.getString("salario"))));

            lista.add(c1);
        }

        rSet.close();
        stm.close();
        return lista;

    }

    public void updateReg (Funcionario c1) throws SQLException {
        String code = "update funcionario set nome=?, salario=?, empresa=?, where id=?";
        PreparedStatement stm = cn.prepareStatement(code);
        
        stm.setString(1, c1.getNome());
        stm.setInt(2, (int) c1.getSalario());
        stm.setString(3, c1.getEmpresa());
        stm.setInt(4, c1.getId());
        
        stm.execute();
        stm.close();
    }
    
    public void removeReg (Funcionario c1) throws SQLException {
        String code = "delete from funcionario where id = ?";
        PreparedStatement stm = cn.prepareStatement(code);
        
        stm.setInt(1, c1.getId());
        
        stm.execute();
        stm.close(); 
    }
}

private void jBsaveActionPerformed(java.awt.event.ActionEvent evt) {
        Orelha c1 = new Orelha();
        c1.setNome(jLnome.getText());
        c1.setEmpresa(jLempresa.getText());
        c1.setSalario (Integer.parseInt(jLsalario.getText() ) );
        
        try {
            EmpresaDAO bd = new EmpresaDAO();
            bd.insertReg(c1);
        } catch (SQLException ex) {
            Logger.getLogger(grafico.class.getName()).log(Level.SEVERE, null, ex);
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(grafico.class.getName()).log(Level.SEVERE, null, ex);
        }
        
    }