Below please find links to archived Q&A discussion for the Object-Oriented Programming II course.
Object-Oriented Programming II
Exercise 1.1: Need-to-Know BasisExercise 1.2: Quick Review: Building a ClassExercise 1.3: Going PublicExercise 1.4: Private! Keep Out!Exercise 1.5: attr_reader, attr_writerExercise 1.6: attr_accessor
Exercise 2.1: What's a Module?Exercise 2.2: Module SyntaxExercise 2.3: Resolve to Keep LearningExercise 2.4: A Few RequirementsExercise 2.5: Feeling Included
Exercise 3.1: The Marriage of Modules and ClassesExercise 3.2: Imitating Multiple InheritanceExercise 3.3: Extend Your Knowledge
Exercise 4.1: A Matter of Public KnowledgeExercise 4.2: Private AffairsExercise 4.3: Module MagicExercise 4.4: Mixin for the Win