从JToggleButton数组获取值

Question

从JToggleButton数组获取值，但在if语句有问题的情况下检查[i] [j]。它说：“从内部类重新定义的局部变量必须是最终的或实际上是最终的” Return 1 to array check if time grid selected

private final JToggleButton[][] toggleButton;
private static final String[] days = 
{"Monday","Tuesday","Wednesday","Thursday","Friday","Satuaday"};
private static final String[] times = 
{"8:00","9:00","10:00","11:00","12:00","1:00","2:00","3:00","4:00"};
private final JLabel[] label;
private final GridLayout gridLayout;
private final int[][] check;
public ButtonFrame()
{
    super("Testing");
    setLayout(new FlowLayout());
    gridLayout = new GridLayout(6,10);
    setLayout(gridLayout);
    toggleButton = new JToggleButton[6][9];
    label = new JLabel[6];
    check = new int[6][9];



    for (int i = 0; i < toggleButton.length; i++)
    {
        label[i] = new JLabel(days[i]);
        add(label[i]);

        for (int j = 0; j < 9; j++)
        {              
            toggleButton[i][j] = new JToggleButton(times[j],false);   


            ActionListener actionListener = new ActionListener()
            {
        public void actionPerformed(ActionEvent actionEvent)
                    {
            AbstractButton abstractButton = (AbstractButton) actionEvent.getSource();
            boolean selected = abstractButton.getModel().isSelected();
            if (selected == true)
                                  check[i][j] = 1;                                  
                            else if (selected == false)
                                  check[i][j] = 0;                                   
        }
    };
    // Attach Listeners

    toggleButton[i][j].addActionListener(actionListener);
    add(toggleButton[i][j]);
        }
    }


}

}

我想问如何解决这个问题