[Solved] Identify the bug in this Elevator class code:class Elevator: def __init__(self): self.current_floor = 5 def move_up(self): self.current_floor =+ 1 e = Elevator() e.move_up() print(e.current_floor) | LLD

LLD - Design — Elevator System

Identify the bug in this Elevator class code:

class Elevator:
    def __init__(self):
        self.current_floor = 5
    def move_up(self):
        self.current_floor =+ 1

e = Elevator()
e.move_up()
print(e.current_floor)

AThe operator '=+' should be '+=' to increment current_floor

BThe constructor should initialize current_floor to 0

CThe method move_up should return current_floor

DThe print statement syntax is incorrect

Step-by-Step Solution

Solution:

Step 1: Understand the operator usage
The operator '=+' is an assignment of positive 1, not an increment.
Step 2: Correct operator for increment
Use '+=' to increment the value of current_floor by 1.
Final Answer:
The operator '=+' should be '+=' to increment current_floor -> Option A
Quick Check:
Check operator usage for increment [OK]

Quick Trick: Use '+=' to increment variables, not '=+' [OK]

Common Mistakes:

MISTAKES

Confusing '=+' with '+=' operator
Not initializing variables properly
Ignoring method return values

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Identify the bug in this Elevator class code:

Step 1: Understand the operator usage

Step 2: Correct operator for increment

Final Answer:

Quick Check:

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