private void paymentButtonActionPerformed(
     java.awt.event.ActionEvent evt) { // GEN-FIRST:event_paymentButtonActionPerformed
   // TODO add your handling code here:
   Client client = (Client) clienteTableFrame.getSelectRow();
   if (client != null) {
     paymentWindow.setClient(client);
     paymentWindow.setVisible(true);
   } else {
     JOptionPane.showMessageDialog(this, "Não há um cliente selecionado");
   }
 } // GEN-LAST:event_paymentButtonActionPerformed
  private void financeButtonActionPerformed(
      java.awt.event.ActionEvent evt) { // GEN-FIRST:event_financeButtonActionPerformed
    // TODO add your handling code here:
    Client client = (Client) clienteTableFrame.getSelectRow();
    if (client != null) {
      financeClienWindow.setClient(client);
      financeClienWindow.setVisible(rootPaneCheckingEnabled);

    } else {
      JOptionPane.showMessageDialog(this, "Não há um cliente selecionado");
    }
  } // GEN-LAST:event_financeButtonActionPerformed