Need help for static method

Question

Hi there so im really confused and stuck at this question so i would like to ask for ur help to understand it

This is the question:
Complete the given code to define a static add() method for the Calculator class, which returns the sum of its parameters.

The code takes two numbers as input, and should return their sum using the Calculator class's add() method.

And this is the given code but I've added some code to it and got really confused:

class Calculator:
#your code goes here
def__init__(self,n1,n2):
self.n1= n1
self.n2= n2
@staticmethod
def __add__(n1,n2):
return (n1 + n2)

n1 = int(input())
n2 = int(input())

print(Calculator.add(n1, n2))

I keep getting an invalid syntax after the def__init__ code and im so confused

Answer 1

Hey! You've forgotten to give a white space between def and __init__ function. Also, in the last line you are using Calculator.add(n1, n2), but Calculator has no attribute named add, it should be __add__

Here is the corrected code:

class Calculator:
#your code goes here
def __init__(self,n1,n2):
self.n1= n1
self.n2= n2
@staticmethod
def __add__(n1,n2):
return (n1 + n2)
n1 = int(input())
n2 = int(input())
print(Calculator.__add__(n1, n2))

Answer 2

Faheem oh thank you man . Such mistakes do cost me alot of time to find out. Thanks for pointing out!

Answer 3

Faheem yeah my bad tried again ur code it works now

Answer 4

Faheem theres is an error at the __add__ part the codes say its supposed to have only 1 parameter but instead theres 2 (n1,n2)

Answer 5

Faheem update i solved it by changing (n1,n2)to form just 1 parameter (sum)and it works! Thanks for ur help anyway

class Calculator:
#your code goes here
def __init__(self,n1,n2):
self.n1= n1
self.n2= n2
@staticmethod
def __add__(sum):
return (n1 + n2)
n1 = int(input())
n2 = int(input())
print(Calculator.__add__(sum))

Answer 6

Zhi Hong your updated code, its working because you're calling n1 and n2 from global scope. Try changing the var of 9 and 10th line, suppose n3 and n4, then it won't work.

If you want to make it better, try this one:

class Calculator:
#your code goes here
@staticmethod
def __add__(n1,n2):
return (n1 + n2)
n3 = int(input())
n4 = int(input())
print(Calculator.__add__(n3, n4))

Answer 7

Zhi Hong sorry to say that, there wasn't any error in the code. Recheck if you've put everything correctly or not