Convert the specified seconds to minutes and seconds

1 Tool method

    /** *  Convert seconds to minutes and seconds 【01:01:01】 * @param second  The number of seconds to convert  * @return */
    public static String secondConvertHourMinSecond(Long second) {
    
        String str = "00:00:00";
        if (second == null || second < 0) {
    
            return str;
        }

        //  Get hours 
        long h = second / 3600;
        str = h > 0 ? ((h < 10 ? ("0" + h) : h) + ":") : "00:";

        //  Get minutes 
        long m = (second % 3600) / 60;
        str += (m < 10 ? ("0" + m) : m) + ":";

        // Get seconds left 
        long s = second % 60;
        str += (s < 10 ? ("0" + s) : s);
        return str;
    }

2 call

public static void main(String[] args) {
    
        System.out.println(secondConvertHourMinSecond(Long.valueOf(3661)));
    }

3 result

explain ： If less than an hour , Hours will also be returned , Minutes will be returned in less than a minute , in other words ： The final format is anyway Minutes and seconds The format of