Create a class named
Formatter should provide one public class method
It should accept a positive long representing milliseconds since 1970 and return a
String containing the ISO-8601
representation of this time. Here is one example for a recent timestamp: given 1602106609897 your function should
Do not overthink this. The solution we are after is a single line of code. We suggest that you explore the various built-in Java libraries for working with dates and times.