TextField is not following the conditions

here's a quick explanation, I make my TextField into false condition inside of .setEnabled area. So basically after the user press check on Cake's check-box, he need to choose either one of the sub-item menu, after he do that, he needs to enter the quantity of the cake. But, after choosing the sub-item menu, the TextField condition should be true(means it should be editable), but it doesn't go as were told. Thank you.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.JRadioButton;
import javax.swing.ButtonGroup;

class testingcheckbox
{
 public static void main(String[] args)
 {
    Frame qB = new Frame("Queen Bakery");

    JCheckBox cake;

    cake = new JCheckBox("Cake");
    JCheckBox cakeOpt1 = new JCheckBox("Butter Cake");
    JCheckBox cakeOpt2 = new JCheckBox("Cheese Cake");

    TextField tfCake = new TextField();
    tfCake.setPreferredSize(new Dimension(50,24));
    tfCake.setEnabled(false);

    ActionListener cakeListener = new ActionListener()
    {
        public void actionPerformed(ActionEvent event)
        {
            if(cake.isSelected())
            {
                cakeOpt1.setEnabled(true);
                cakeOpt2.setEnabled(true);

                if(cakeOpt1.isSelected())
                {
                    tfCake.setEnabled(true);
                }
                else
                {
                    tfCake.setEnabled(false);
                }
            }
            else
            {
                cakeOpt1.setEnabled(false);
                cakeOpt2.setEnabled(false);
            }
        }
    };

    cake.addActionListener(cakeListener);
    qB.add(cake);

    cakeOpt1.setEnabled(false);
    cakeOpt2.setEnabled(false);
    qB.add(cakeOpt1);
    qB.add(cakeOpt2);

    qB.add(tfCake);

    qB.addWindowListener(new WindowAdapter() 
    {
        public void windowClosing(WindowEvent windowEvent)
        {
            System.exit(0);
        }        
    });

    qB.setSize(780,470);
    qB.setLayout(new FlowLayout(FlowLayout.LEFT));
    qB.setVisible(true);
    qB.setLocationRelativeTo(null);
    qB.setResizable(false);
 }
}