learn-co-students / oo-ruby-video-object-orientation-overview-online-web-ft-021119

Video: Object Orientation Overview

This video gives a concise introduction to Object Orientation. There may be several concepts that you're unfamiliar with but in subsequent lessons we will take a closer look at each of the topics covered and you'll have plenty of practice via labs.

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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