Calender Calculation

Question

I'm trying to find the best way of Creating a calender.
so far I can create a month and a year if I start with January, 1st, 2017.
However I can't get another year or go from january to december without losing data as my program only knows how the next month will look based on the previous month :-)
I'm looking for some math help if possible.
https://code.sololearn.com/cRT487wl0zSK/?ref=app
The above code is just what I've been working on here on SoloLearn while I was away from my computer. 😁

Answer 1

I am not getting any output

Answer 2

It does that sometimes.
Just try again :-)
it will give you output :-)
NOTE: I Just tested the code and nothing is wrong with it.
I don't know why but sometimes it just needs a few "Run" before it displays output? 🤔