Design a class named TextBook that is a child class of Book. Include a new data field for the grade level of the book and get and set methods for the new field. Provide the pseudocode for the TextBook class

Question

Very basic pseudo code is what we're dealing with. New to OOP and I do not understand it. I'm not asking anyone to simply solve these problems but rather help walking me through them if possible. These are not assignments, just exercises from the book that I'm trying to do on my own time