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#!/usr/bin/ruby -w
class Box
# constructor method
def initialize(w,h)
@width, @height = w, h
end
# define to_s method
def to_s
"(w:#@width,h:#@height)" # string formatting of the object.
end
end
# create an object
box = Box.new(10, 20)
# to_s method will be called in reference of string automatically.
puts "String representation of box is : #{box}"
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