How to concatenate two Timestamps and add quote brackets?

Question

Java

Sorry for the lamer question, there are two Timestamps

Timestamp timestamp = 2018-08-14 15:30:00.0;
Timestamp timestamp1 =2018-08-14 15:45:00.0;

How to glue them together and add quotes and brackets [and ), and remain Timestamp, so that it is like this: That is, the essence is this - you need to sort in the tsrange field:
["2018-08-14 15:30:00","2018-08-14 15:45:00")

during
["2018-07-27 09:30:00","2018-07-27 10:30:00")
["2018-07-28 09:00:00","2018-07-28 16: 00:00")
["2018-08-08 09:00:00","2018-08-08 17:00:00")

Answer 1

you will need:
1) String.format(...) + SimpleDataFormat
or
2) concat(...) + SimpleDataFormat
P.S. SimpleDataFormat - may or may not be needed, depending on how you already have the Timestamp