help please with this error!

I have tried everything and I can not solve it, it is a Dao impementation, on line 148 that says

  

private DaoImpl Cliente_Dao_Impl (int ultid) {           throw new UnsupportedOperationException ("Not supported yet."); // To change body of generated methods, choose Tools | Templates       }

I leave my complete code, I hope you can help me

/*
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 * and open the template in the editor.
 */
package DaoImpl;

import Conexion.Conexion;
import Dao.Dao_Cliente;
import Idao.Interface_ClienteDao;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.sql.Connection;
import java.sql.SQLException;
import javax.swing.JOptionPane;

/**
 *
 * @author Lorena
 */
public class Cliente_Dao_Impl extends Conexion implements Interface_ClienteDao{

    @Override
    public void registrar(Dao_Cliente cliente) {

        try {
            this.conectar();
            String sql="INSERT INTO cliente values(null,?,?,?,?,?,?,?,?,?,0)";
            PreparedStatement st = this.con.prepareStatement(sql);
            //st.setString(1, null);
            st.setInt   (1, cliente.getId_cliente());
            st.setString(2, cliente.getUsuario());
            st.setString(3, cliente.getPassword());
            st.setString(4, cliente.getNombre_cliente());
            st.setString(5, cliente.getApe_pat_cliente());
            st.setString(6, cliente.getApe_mat_cliente());
            st.setString(7, cliente.getDireccion_cliente());
            st.setString(8, cliente.getTelefono_cliente());
            st.setInt   (9, cliente.getEstado_cliente());
            st.setString(10, cliente.getRut_cliente());

            st.executeUpdate();

            st = con.prepareStatement("select MAX(id_cliente) from cliente");
            ResultSet rs;
            rs = st.executeQuery();

            if(rs.next()){
                String last = rs.getString(1);


            String sqllogin="INSERT INTO login values(null,?,?,?,0)";
            PreparedStatement stlogin = this.con.prepareStatement(sqllogin);
            //st.setString(1, null);
            int numEntero = Integer.parseInt(last);

            stlogin.setInt(3, numEntero);
            stlogin.setString(1, cliente.getUser());
            stlogin.setString(2, cliente.getPass());
            stlogin.setInt(3, numEntero);


            stlogin.executeUpdate();
            }

        } catch (Exception ex) {
            Logger.getLogger(Cliente_Dao_Impl.class.getName()).log(Level.SEVERE, null, ex);
        }

    }

    @Override
    public List<Dao_Cliente> obtener() {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void actualizar(Dao_Cliente cliente) {

        try {
            this.conectar();
            String sql="UPDATE cliente SET usuario=?, password=?, nombre_cliente=?, ape_pat_cliente=?, ape_mat_cliente=?,direccion_cliente=?,telefono_cliente=? WHERE rut_cliente=?, estado_cliente=?, id_cliente=?";
            PreparedStatement st = this.con.prepareStatement(sql);

            st.setInt(1, cliente.getId_cliente());
            st.setString(2, cliente.getUsuario());
            st.setString(2, cliente.getPassword());
            st.setString(3, cliente.getNombre_cliente());
            st.setString(4, cliente.getApe_pat_cliente());
            st.setString(5, cliente.getApe_mat_cliente());
            st.setString(6, cliente.getDireccion_cliente());
            st.setString(7, cliente.getTelefono_cliente());
            st.setInt(8, cliente.getEstado_cliente());
            st.setString(9, cliente.getRut_cliente());



            st.executeUpdate();
    }catch (Exception ex) {
            Logger.getLogger(Cliente_Dao_Impl.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    @Override
    public void eliminar(Dao_Cliente cliente) {

          try {
                  this.conectar();
              } catch (Exception ex) {
                  Logger.getLogger(Cliente_Dao_Impl.class.getName()).log(Level.SEVERE, null, ex);
              }
            String sql="UPDATE cliente SET estado_cliente=1 WHERE rut_cliente=?";

            int confirmar = JOptionPane.showConfirmDialog(null, "Esta seguro que desea eliminar el registro?");


            if(JOptionPane.OK_OPTION==confirmar) { 

             Connection conexion = null;

            PreparedStatement st = null;
                  try {
                      st = this.con.prepareStatement(sql);
                  } catch (SQLException ex) {
                      Logger.getLogger(Cliente_Dao_Impl.class.getName()).log(Level.SEVERE, null, ex);
                  }

            JOptionPane.showMessageDialog (null, "Dato Eliminado");
                  try {
                      st.setString(1, cliente.getRut_cliente());
                  } catch (SQLException ex) {
                      Logger.getLogger(Cliente_Dao_Impl.class.getName()).log(Level.SEVERE, null, ex);
                  }


                  try {
                      st.executeUpdate();


                 }catch (Exception ex) {
                      Logger.getLogger(Cliente_Dao_Impl.class.getName()).log(Level.SEVERE, null, ex);
                  }  


    private DaoImpl Cliente_Dao_Impl(int ultid) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public List<Dao_Cliente> obteberultimoid() {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean buscarcliente(Dao_Cliente cliente) {
          try {
            this.conectar();
            String sql="select * from cliente WHERE rut_cliente=?";
            PreparedStatement st = this.con.prepareStatement(sql);

            st.setString(1, cliente.getRut_cliente());
             ResultSet rs;
            rs = st.executeQuery();

            if(rs.next()){


                cliente.setId_cliente(rs.getInt("id_cliente"));
                cliente.setUsuario(rs.getString("usuario"));
                cliente.setPassword(rs.getString("password"));
                cliente.setNombre_cliente(rs.getString("nombre_cliente"));
                cliente.setApe_pat_cliente(rs.getString("ape_pat_cliente"));
                cliente.setApe_mat_cliente(rs.getString("ape_mat_cliente"));
                cliente.setDireccion_cliente(rs.getString("direccion_cliente"));
                cliente.setTelefono_cliente(rs.getString("telefono_cliente"));
                cliente.setEstado_cliente(rs.getInt("estado_cliente"));
                cliente.setRut_cliente(rs.getString("rut_cliente"));
            }


     return true;
              }catch (Exception ex) {
            Logger.getLogger(Cliente_Dao_Impl.class.getName()).log(Level.SEVERE, null, ex);

            return false;

    }
    }
}