Ruby

Inheritance

classes.png

# The super-class
class Vehicle
  def number_of_wheels(wheels)
    "Has #{wheels} wheels"
  end

  def number_of_seats(seats)
    "Has #{seats} seats"
  end

  def owner_name(owner)
    "The owner is #{owner}"
  end
end

# The sub-class
class Bicycle < Vehicle
  def chain_manufacturer
    "Chain Manufactured by Shimano"
  end

  def additional_seating_at_carrier
    "Additonal seat available"
  end
end

# Instance
trekbike = Bicycle.new

puts trekbike.number_of_wheels(2)

puts trekbike.number_of_seats(2)

puts trekbike.owner_name("Renu Sen")

puts trekbike.chain_manufacturer

puts trekbike.additional_seating_at_carrier