In the constructor for the ArrayBag class shown below, what is the missing code? Def __init__(self, sourceCollection = None): AbstractBag.__init__(self, sourceCollection) A) items.add(self) B) self.items = Array(ArrayBag.DEFAULT_CAPACITY) C) self.items = ArrayBag.add(sourceCollection) D) add.items(self, sourceCollection)

Question

In the constructor for the ArrayBag class shown below, what is the missing code?
Def __init__(self, sourceCollection = None):
< missing code >
AbstractBag.__init__(self, sourceCollection)
A) items.add(self)
B) self.items = Array(ArrayBag.DEFAULT_CAPACITY)
C) self.items = ArrayBag.add(sourceCollection)
D) add.items(self, sourceCollection)

Quizplus · Accepted Answer

The missing code should initialize the ArrayBag's items attribute as an Array with a capacity of DEFAULT_CAPACITY (which is a constant defined somewhere in the class). Option B achieves this. Option A makes no sense because we cannot add an empty Array into our self.items. Option C is invalid because the add() method does not exist in the ArrayBag class, and even if it did, it would not create an Array object to store our data. Option D is also invalid because add.items() is not a valid method or attribute in Python.

In the Constructor for the ArrayBag Class Shown Below, What