call drive_vehicle

20 drive_vehicle(Car.new)
21 drive_vehicle(Truck.new)

definition of inheritance.rb

7  class Car < Vehicle
10 class Truck < Vehicle

Object#drive_vehicle

16 def drive_vehicle(v)
17   v.drive
18 end

output 1

1 C:\Users\walton.hoops\Desktop>ruby vehicle.rb
2 Cruisin in my Car
3 Cruisin in my Truck
4 Tow that gosh durn Car
5 
6 C:\Users\walton.hoops\Desktop>

output 1 snippet

2 Cruisin in my Car
3 Cruisin in my Truck

output 2

1 C:\Users\walton.hoops\Desktop>ruby vehicle.rb
2 Cruisin in my Car
3 Cruisin in my Truck
4 get a long little doggie!
5 Tow that gosh durn Car
6 
7 C:\Users\walton.hoops\Desktop>

responds to the call to drive

3     puts "Cruisin in my #{self.class}"

Vehicle#drive

1 class Vehicle
2   def drive
3     puts "Cruisin in my #{self.class}"
4   end
5 end

vehicle_1.rb

1  class Vehicle
2    def drive
3      puts "Cruisin in my #{self.class}"
4    end
5  end
6  
7  class Car < Vehicle
8  end
9  
10 class Truck < Vehicle
11   def tow(target)
12     puts "Tow that gosh durn #{target.class}"
13   end
14 end
15  
16 def drive_vehicle(v)
17   v.drive
18 end
19 
20 drive_vehicle(Car.new)
21 drive_vehicle(Truck.new)
22 
23 Truck.new.tow(Car.new)

vehicle_2.rb

1  class Vehicle
2    def drive
3      puts "Cruisin in my #{self.class}"
4    end
5  end
6  
7  class Car < Vehicle
8  end
9  
10 class Truck < Vehicle
11   def tow(target)
12     puts "Tow that gosh durn #{target.class}"
13   end
14 end
15 
16 class Cattle
17   def self.drive
18     puts "get a long little doggie!"
19   end
20 end
21 
22 def drive_vehicle(v)
23   v.drive
24 end
25 
26 drive_vehicle(Car.new)
27 drive_vehicle(Truck.new)
28 drive_vehicle(Cattle)
29 
30 Truck.new.tow(Car.new)