时间差 转换成天时分秒

public class 时间转换天时分秒 {
    public static void main(String[] args) {


        //时间差
        long timeDifference=12313213;
        System.out.println(conversion(timeDifference));
    }

    //分
    private static Integer  branch=60;
    //时
    private static Integer  time=60*60;
    /**
     * 天
     */
    private static Integer  days= 60*60*24;

    private static String conversion(long timeDifference) {
        //转换
        String timedesc=null;
        long minutes;
        long remainingSeconds;
        long hour;
        long day;
        if (timeDifference<branch){
            timedesc=(timeDifference)+"秒";
        }else  if (timeDifference>branch-1&&timeDifference<time){
            minutes = timeDifference / branch;
            remainingSeconds= timeDifference % branch;
            timedesc= minutes +"分"+remainingSeconds+"秒";
        }else if (timeDifference>time-1&&timeDifference<days){
            hour=timeDifference/time;
            remainingSeconds = (timeDifference%time)/branch;
            minutes = (timeDifference%days)%branch;
            timedesc=hour+"时"+minutes +"分"+remainingSeconds+"秒";
        }else if(timeDifference>days-1){
            day= timeDifference/ ( days);
            hour = (timeDifference% ( days)) / (time);
            minutes = (timeDifference % (time)) /branch;
            remainingSeconds = timeDifference % branch;
            timedesc=day+"天"+hour+"时"+minutes +"分"+remainingSeconds+"秒";
        }
        return timedesc;
    }
}

示例：