Question
In this exercise, the __init__()
method for the Node
class takes a parameter named next_node
which has a default value of None
. How would a Node
object be created that assigns next_node
to a value?
Answer
The value provided for next_node
needs to be a reference to another Node
object. In most cases, a Node
object is going to be created using the default value of None
and then the value for self.next_node
will be set as part of creating and manipulating the Node
object as part of a linked list. However, the following example extends the exercise to show how a new Node
object is created that will set next_node
to point to the first object created.
my_node = Node(44)
my_node2 = Node(66, my_node)