public class TimerDemo {
    
    /**
     * 得到下一个整点时间
     * @return
     */
    public static Date getNextFullTime(){
        Calendar calendar = Calendar.getInstance();
        Date date = null;
        if(calendar.get(Calendar.MINUTE) == 0 ){
            date =  calendar.getTime();
        }else{
            date =  new Date(calendar.get(Calendar.YEAR) - 1900, calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), calendar.get(Calendar.HOUR_OF_DAY) + 1, 0 , 0);
        }
        return date;
    }
    
    public static void main(String[] args) {
        Timer timer = new Timer();
        timer.schedule(new TimerTask() {
            public void run() {
                JOptionPane.showMessageDialog(null, "时间到  " + new Date().toLocaleString());
            }
        }, TimerDemo.getNextFullTime() , 3600000);
    }
    
}

------解决方案--------------------
Timer和TimerTask可以实现