test.rb

#!/usr/bin/env ruby

class FooBar
    include Enumerable
    @array_out = Array.new
    def initialize( array1 , array2 )
        if array1 != [] and array2 != []
            for i in array1
                for j in array2
                    k = [i,j].join("|") 
                    puts k
                end
            end 
        end
    end
end

x = FooBar.new( (1..3) , [4,6] )