attr_reader « Class « Ruby

1.	attr_reader creates one or more instance variables, with corresponding methods that return (get) the values of each method.
2.	Calling the attr_accessor method does the same job as calling both attr_reader and attr_writer together, for one or more instance methods
3.	Use attr_reader to add a new attribute and use initialize method to set it
4.	attr_reader creates these accessor methods for you.