问在while循环中使用计时器

EN

public class Game implements KeyListener, ActionListener{

    private Preparation prep;
    private Window window;
    private JLabel earthLabel;
    private JPanel panel;
    private Timer timer;
    private JLabel[] arrayOfAllSpaceshipsLabels;
    private int[] arrayOfAllSpaceshipsIndexes;
    private JLabel currentShipLabel;
    private int numberOfBlocks;
    private int firings;
    private int[][] blocks = new int[60][15] //the values in this array have been initalized in another class that is too big and not relevant to my problem

    public Game(){
        window = new Window("Space Game"); 
        runBlock();

    }

    private void runBlock() {
        int blocksLength = blocks.length;
        numberOfBlocks = 0;
        while(numberOfBlocks < blocksLength){
            firings = 0;

            timer = new Timer(1333, new ActionListener(){

                @Override
                public void actionPerformed(ActionEvent e) {

                    if (firings == 15){
                        panel.removeAll(); 
                        panel.revalidate();
                        panel.repaint();
                        timer.stop();
                        System.out.println("Block finished");
                        return;
                    }
                    panel.removeAll(); /*(currentShipLabel);*/
                    panel.revalidate();
                    panel.repaint();

                    currentShipLabel = arrayOfAllSpaceshipsLabels[blocks[numberOfBlocks][firings]];
                    panel.add(currentShipLabel);
                    panel.validate();

                    firings++;

                }
            });
            timer.start();
        }
        numberOfBlocks++;
    }
}

public class Window extends JFrame{

    private JPanel panel;

    public Window(String title){
        SwingUtilities.isEventDispatchThread();
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        //this.setBackground(Color.BLACK);
        panel = new JPanel();
        this.add(panel);
        this.pack();
        this.setSize(500,500); //my edit
        panel.setBackground(Color.BLACK);
        this.setVisible(true);

    }

    public JPanel getPanel() {
        // TODO Auto-generated method stub
        return panel;
    }

}