class TimeTool {

    public Date stringToDate(String dateString){
        Date date = null;
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
        try {
            date = sdf.parse(dateString);
        } catch(ParseException e) {
        }
        return date;
    }
    public String dateToString(Date date){
        SimpleDateFormat ft = new SimpleDateFormat ("yyyy/MM/dd HH:mm:ss");
        String dateString = ft.format(date);
        return dateString;
    }
    public String getCurrentTimeString(){
        SimpleDateFormat ft = new SimpleDateFormat ("yyyy/MM/dd HH:mm:ss");
        String dateString = ft.format(new Date());
        return dateString;
    }
    
}