Question

I have a string containing the UNIX Epoch time, and I need to convert it to a Java Date object.

String date = '1081157732'; DateFormat df = new SimpleDateFormat(''); // This line try {   Date expiry = df.parse(date);  } catch (ParseException ex) {   ex.getStackTrace(); } 

The marked line is where I’m having trouble. I can’t work out what the argument to SimpleDateFormat() should be, or even if I should be using SimpleDateFormat().

Answer 1

How about just:

Date expiry = new Date(Long.parseLong(date)); 

EDIT: as per rde6173‘s answer and taking a closer look at the input specified in the question , ‘1081157732’ appears to be a seconds-based epoch value so you’d want to multiply the long from parseLong() by 1000 to convert to milliseconds, which is what Java’s Date constructor uses, so:

Date expiry = new Date(Long.parseLong(date) * 1000);