How to get start and end range from list of timestamps?

Question

I have a timestamp string like this:

2016-01-14T22:43:55Z
2016-01-15T00:04:50Z
2016-01-15T00:44:59+08:30
2016-01-15T01:25:35-05:00
2016-01-15T01:44:31+08:30
         


        

Answer 1

You must use Comparator. First of all create a class and implement Comparator. And then compare value1 and value2 with your choice. After that use this class to Collections.sort.

Regards, a.ayati

Answer 2

OffsetDateTime

Parse those ISO 8601 strings into java.time.OffsetDateTime objects.

OffsetDateTime.parse( "2016-01-15T00:44:59+08:30" )

Add those date-time objects to a Collection and sort. You probably want a List such as ArrayList or a SortedSet.

The java.time classes implement the compareTo method, to fulfill their contract as a Comparable. So these objects know how to sort.

Like this:

List<OffsetDateTime> odts = new ArrayList<>();

OffsetDateTime odt = OffsetDateTime.parse( "2016-01-15T00:44:59+08:30" ) ;
odts.add( odt );
… // Parse remaining ISO 8601 strings, adding each new OffsetDateTime object to collection.

Collections.sort( odts );