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  Mitchell, W.
  
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Quiz 10, April 2, 2018; 3 4 minutes; 3 points total

1. Write a Ruby class named Pair, as follows:
   • A Pair is constructed with two values, both assumed to have a size method.
   • The eqsize method returns true iff the size of both values is the same.
   • The to_s method returns a string with the two sizes. Ex: "3 / 4".
   Examples:

   >> p = Pair.new("abc", [1,2,3])
   
   >> p.eqsize     => true
   
   >> p.to_s       => "3 / 3"
   
   >> Pair.new([], {1=>2}).to_s    => "0 / 1"
   

EC ½ point: Tell me something about writing classes in Ruby not evidenced above.

EC ½ point: Provide Pair with "getters" a and b, to fetch the two values held.

Answers

1. Write a Ruby class Pair.

   class Pair
       def initialize(a,b)
           @a,@b = a,b
       end
   
       def eqsize
           @a.size == @b.size
       end
   
       def to_s
           "#{@a.size} / #{@b.size}"
       end
   
       attr_reader :a, :b
   end
   

   EC ½ point: Tell me something about writing classes in Ruby not evidenced above.

   Class variables are denoted with a double sigil: @@

   EC ½ point: Provide Pair with "getters" a and b, to fetch the two values held.

   Included above, via attr_reader.