Can anyone tell me that how to learn oop in ruby

Answer 1

Check this links out:
@https://launchschool.com/books/oo_ruby
@https://www.rubyguides.com/ruby-tutorial/object-oriented-programming/

Answer 2

Please always tag the language you're asking about.
https://code.sololearn.com/W3uiji9X28C1/?ref=app