What does the following Python code snippet accomplish?class Node: def __init__(self, data): self.data = data self.next = Nonenode1 = Node(1)node2 = Node(2)node1.next = node2Creates two linked list nodes with data 1 and 2, respectivelyCreates a singly linked list with two nodes containing data 1 and 2, respectivelyCreates a doubly linked list with two nodes containing data 1 and 2, respectivelyRaises a syntax error
Question
What does the following Python code snippet accomplish?class Node: def init(self, data): self.data = data self.next = Nonenode1 = Node(1)node2 = Node(2)node1.next = node2Creates two linked list nodes with data 1 and 2, respectivelyCreates a singly linked list with two nodes containing data 1 and 2, respectivelyCreates a doubly linked list with two nodes containing data 1 and 2, respectivelyRaises a syntax error
Solution
The provided Python code snippet accomplishes the task of creating a singly linked list with two nodes containing data 1 and 2, respectively.
Here's a step-by-step explanation:
-
A class named
Nodeis defined. This class will be used to create nodes for a linked list. Each node will have adataattribute to hold the data and anextattribute to point to the next node in the list. -
The
__init__method is a special method in Python classes, it's the constructor method. When a new object is created from a class, the__init__method is immediately executed. Theselfparameter is a reference to the current instance of the class and is used to access variables and methods that belongs to the class. -
node1 = Node(1)creates an instance of theNodeclass with data1. Thenextattribute of this node isNonebecause we haven't linked it to any other node yet. -
node2 = Node(2)creates another instance of theNodeclass with data2. Thenextattribute of this node is alsoNone. -
node1.next = node2links the first node to the second node. Now, thenextattribute ofnode1isnode2, which meansnode1points tonode2. This forms a singly linked list of two nodes.
So, the correct answer is: "Creates a singly linked list with two nodes containing data 1 and 2, respectively".
Similar Questions
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