[Solved] Identify the error in this Booking class code snippet:class Booking: def __init__(self, room): self.room = room def confirm(self): self.room.is_available = False booking = Booking(None) booking.... | LLD

LLD - Design — Hotel Booking System

Identify the error in this Booking class code snippet:

class Booking:
    def __init__(self, room):
        self.room = room
    def confirm(self):
        self.room.is_available = False

booking = Booking(None)
booking.confirm()

ANo error, code runs fine

BSyntaxError in method definition

CAttributeError because room is None

DTypeError in constructor

Step-by-Step Solution

Solution:

Step 1: Check constructor argument
Booking is created with room set to None.
Step 2: Confirm method tries to set attribute
confirm() sets self.room.is_available = False, but self.room is None.
Step 3: Resulting error
Accessing attribute on None causes AttributeError at runtime.
Final Answer:
AttributeError because room is None -> Option C
Quick Check:
None object has no attributes = AttributeError [OK]

Quick Trick: Calling attribute on None causes AttributeError [OK]

Common Mistakes:

Assuming code runs without error
Confusing AttributeError with SyntaxError
Expecting TypeError in constructor

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Identify the error in this Booking class code snippet:

Step 1: Check constructor argument

Step 2: Confirm method tries to set attribute

Step 3: Resulting error

Final Answer:

Quick Check:

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