PCAP-31-03 4.6 Construct and Initialize Objects PCAP-31 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   Which method signature correctly declares a constructor in a Python class?

   • Adef __init__(self):
   • Bdef __init__():
   • Cdef constructor(self):
   • Ddef init(self):
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2. 2foundation · easy

   Which of the following statements correctly creates an instance of a class that has no explicit __init__ method?

   • Aobj = MyClass.__init__()
   • Bobj = MyClass(10)
   • Cobj = new MyClass()
   • Dobj = MyClass()
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4. 3foundation · easy

   What is the correct way to declare a constructor that accepts two arguments (besides self) in a Python class?

   • Adef __init__(self, arg1, arg2):
   • Bdef __init__(self, arg1, arg2, arg3):
   • Cdef __init__(self, *args):
   • Ddef __init__(arg1, arg2):
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5. 4foundation · easy

   Given the class definition: class Point: def __init__(self, x, y): self.x = x self.y = y Which statement correctly creates an instance of Point?

   • Ap = Point(3)
   • Bp = Point()
   • Cp = Point(3, 4)
   • Dp = Point.__init__(3, 4)
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6. 5foundation · easy

   What happens when you execute the following code? class Dog: def __init__(self, name): self.name = name d = Dog('Rex')

   • AThe code raises a TypeError because Dog has no constructor.
   • BA new Dog object is created, but the name attribute is not set.
   • CA new Dog object is created and its name attribute is set to 'Rex'.
   • DThe code raises a NameError because 'Rex' is not defined.
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