Visueller Countdown in JFrame

Code:

Code (Java):

@SuppressWarnings({ "serial", "unused" })
public class TextProgramm extends JFrame {
    private final Action action = new SwingAction();

    /**
    * Launch the application.
    */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    TextProgramm frame = new TextProgramm();
                    frame.setVisible(true);
                } catch (Exception e) {...

Visueller Countdown in JFrame

Visueller Countdown in JFrame