Through json I am getting the value 4, means the month April 2020. After that need to generate the list of months starting from April 2020 to March 2021 – 12 months based upon the json value. Same time need to generate the days of corresponding monthss.

Example:

The received json value is 4, So Months need to generate – April 2020, May 2020, June 2020, July 2020, August 2020,September 2020, October 2020, November 2020, December 2020, January 2021, February 2021, March 2021. Days: for each month.