/* import宣言は省略 */ class TimeLabel extends JLabel { private static final long serialVersionUID = 1L; private DateFormat format; private boolean roop_flag; public TimeLabel(){ this.setFont(new Font("Dialog",Font.BOLD,24)); format = new SimpleDateFormat("HH:mm:ss"); roop_flag = true; Thread thread = new TimerThread(); thread.start(); } public synchronized void setTime(){ Calendar calendar = Calendar.