29 lines
508 B
Python
29 lines
508 B
Python
# staticchecking/PetSpeak.py
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# (c)2017 MindView LLC: see Copyright.txt
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# We make no guarantees that this code is fit for any purpose.
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# Visit http://OnJava8.com for more book information.
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# Speaking pets in Python
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class Pet:
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def speak(self): pass
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class Cat(Pet):
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def speak(self):
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print("meow!")
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class Dog(Pet):
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def speak(self):
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print("woof!")
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def command(pet):
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pet.speak()
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pets = [ Cat(), Dog() ] # (1)
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for pet in pets: # (2)
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command(pet)
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output = """
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meow!
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woof!
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"""
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