Pt. 2 - EASY PYTHON Multi Choice questions

1a) What is wrong with the following constructor?

def __init__(): self._weight = 0.0 self._color = "None" 

The constructor must have a different name

The constructor must take the self parameter

The constructor must initialize _color before _weight

1b) A constructor

must use assignment statements to initialize class data

may use assignment statements to initialize class data.

must use mutators to initialize class data.

may use mutators to initialize class data.

1c) Instance variables are__________

member variables whose values are shared by all object instances of the class.

member variables whose values are unique to each object of the class.

types of local variables that get their values from the main function.

1d) The method is automatically called when an object is created.

__init__

init

__str__

__object__

1e) Which method below would be considered a mutator method?

getCount()

addItem()

getTotal()

printItem()

1f) Which method below would be considered an accessor method?

getCount()

addItem()

clearCount()

updateItem()

1g) Before invoking a method on an object, what must be done first?

Initialize all instance variables

Invoke the accessor and mutator methods

Create a public interface

Construct the object

1h) A method that queries an object for some information without changing it is known as a(n):

Accessor

Function

Interface

Mutator

1i) Assume a class exists named Fruit. Which of the follow statements constructs an object of the Fruit class?

def Fruit():

class Fruit():

x = Fruit()

x = Fruit.create()

1j What is the name of the method in the following code segment?

class Fruit : def getColor(self): return self._color 

_color

Fruit

getColor

self