[Solved] What will be the output of this code?class Counter: def __init__(self, count): self.count = count def __add__(self, other): return Counter(self.count + other.count) def __str__(self): return str(self.... | Python

Python - Magic Methods and Operator Overloading

What will be the output of this code?

class Counter:
    def __init__(self, count):
        self.count = count
    def __add__(self, other):
        return Counter(self.count + other.count)
    def __str__(self):
        return str(self.count)
c1 = Counter(3)
c2 = Counter(4)
c3 = c1 + c2
print(c3)

ATypeError

BCounter object

C7

D34

Step-by-Step Solution

Solution:

Step 1: Understand __add__ and __str__ methods
__add__ returns a new Counter with sum of counts; __str__ returns count as string.
Step 2: Trace the addition and print
c1 + c2 creates Counter(7), print calls __str__ which returns '7'.
Final Answer:
7 -> Option C
Quick Check:
Adding objects uses __add__, printing uses __str__ = 7 [OK]

Quick Trick: Define __add__ to add objects, __str__ to print nicely [OK]

Common Mistakes:

Expecting print to show object memory address
Getting TypeError due to missing __add__
Concatenating counts as strings instead of adding

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More Python Quizzes

What will be the output of this code?

Step 1: Understand add and str methods

Step 2: Trace the addition and print

Final Answer:

Quick Check:

Want More Practice?

What will be the output of this code?

Step 1: Understand __add__ and __str__ methods

Step 2: Trace the addition and print

Final Answer:

Quick Check:

Want More Practice?

Step 1: Understand add and str methods