[Solved] Identify the error in this code:class Room: def __init__(self, name): self.name = name class Office(Room): def __init__(self, name, floor): self.... | LLD

LLD - Design — Hotel Booking System

Identify the error in this code:

class Room:
    def __init__(self, name):
        self.name = name

class Office(Room):
    def __init__(self, name, floor):
        self.floor = floor

office = Office('Main Office', 3)
print(office.name, office.floor)

AOffice.__init__ does not call Room.__init__, so name is missing

BOffice class should not have __init__ method

CRoom class should not have __init__ method

DNo error, code runs fine

Step-by-Step Solution

Solution:

Step 1: Check constructor chaining
Office.__init__ overrides Room.__init__ but does not call it, so name is not set.
Step 2: Result of missing call
Accessing office.name will cause an error or print undefined.
Final Answer:
Office.__init__ does not call Room.__init__, so name is missing -> Option A
Quick Check:
Missing super() call causes missing attributes [OK]

Quick Trick: Call base __init__ in subclass to set base attributes [OK]

Common Mistakes:

Ignoring need for super() in subclass __init__
Assuming base attributes set automatically

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Identify the error in this code:

Step 1: Check constructor chaining

Step 2: Result of missing call

Final Answer:

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