How to increment time by 10 minute intervals

Question

For a certain date (this is a hard coded date), I want to increment through the time for LastModifiedTimeFrom and LastModifiedTimeTo by 10 minutes each time.

I have tried the below but it is not performing the increment and I am not sure why?

Date d = Date.parse("HH:mm:ss", "00:00:00")
Calendar c = Calendar.getInstance()
c.setTime(d)

c.add(MINUTE, 10)
assert c.time == "00:10:00"

c.add(MINUTE, 10)
assert c.time == "00:20:00"

c.add(MINUTE, 10)
assert c.time == "00:30:00"

Answer 1

I would recommend a combo approach of using some Groovy syntactic sugar and the verbose, but ever-reliable Java Calendar. With the code below, you should be able to parse in a date and start adding 10 minutes to it, checking it as you go along.

import java.util.Calendar
import static java.util.Calendar.*

Date d = Date.parse("HH:mm:ss", "00:00:00")
Calendar c = Calendar.getInstance()
c.setTime(d)

c.add(MINUTE, 10)
assert c.time.format("HH:mm:ss") == "00:10:00"

c.add(MINUTE, 10)
assert c.time.format("HH:mm:ss") == "00:20:00"

c.add(MINUTE, 10)
assert c.time.format("HH:mm:ss") == "00:30:00"