OO Ruby Video: Object Orientation Overview

Objectives

  • Explain how objects are metaphors for real life concepts

  • Define a new class with the class keyword

  • Instantiate instances of the class with the class constructor new.

  • Add attributes to our instances with setter/getter methods and instance variables

  • Use the attr_accessor, attr_reader and attr_writer methods to dynamically create setter and getter methods

  • Keep track of all our class' instances with class variables and class methods

  • Hook into an object's instantiation with #initialize

  • Explain when to use implicit versus explicit receivers

  • Define a class find_by_name method to find specific instances

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