Cannot convert from java Double to java Date

Question

I am having an issue with converting a double to a Java date object in the format: yyyy-MM-dd HH:mm:ss

I have tried to convert this double value to a long value then ins

Answer 1

Assuming that this floating point value is seconds past the Unix Epoch of 1 Jan 1970 0:00 GMT, this will provide a conversion to a LocalDateTime with that offset:

LocalDateTime localDateTime = LocalDateTime.ofEpochSecond(
                Double.valueOf(1.511554592277516E9).longValue(), 0, ZoneOffset.UTC);
System.out.println(localDateTime);

I leave converting this to a Date as an exercise for the reader.