Abstract Classes 썸네일형 리스트형 [Hackerrank] Abstract Classes Objective Today, we will extend what we learned yesterday about Inheritance to Abstract Classes. Because this is a very specific object oriented concept, submissions are limited to the few languages that use this construct. Check out the Tutorial tab for learning materials and an instructional video. Task Given a Book class and a Solution class, write a MyBook class that does the following: Inhe.. 더보기 이전 1 다음