private void jTextField1KeyPressed(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_jTextField1KeyPressed
        String temp = jTextField1.getText().replaceAll("[^0-9]", "");
        jTextField1.setText(temp);
        if (evt.getKeyCode() == KeyEvent.VK_ENTER) {
            try {
                this.login();
            } catch (SQLException ex) {
                warningLabel.setText("Erro: Falha na conexão com o BD");
                Logger.getLogger(UILogin.class.getName()).log(Level.SEVERE, null, ex);
            } catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex) {
				Logger.getLogger(UILogin.class.getName()).log(Level.SEVERE, null, ex);
			}
        }
    }//GEN-LAST:event_jTextField1KeyPressed