[Solved] Which of the following correctly defines a method named greet that uses self in a Python class? — Ans: def greet(self): print('Hello') | Python

Python - Constructors and Object Initialization

Which of the following correctly defines a method named greet that uses self in a Python class?

Adef greet():<br> print('Hello')

Bdef greet(self):<br> print('Hello')

Cdef greet(cls):<br> print('Hello')

Ddef greet(self, cls):<br> print('Hello')

Step-by-Step Solution

Solution:

Step 1: Method definition in classes
Instance methods must have self as the first parameter to access instance data.
Step 2: Analyze options
def greet(self):
print('Hello') correctly defines greet(self). def greet():
print('Hello') lacks self. def greet(cls):
print('Hello') uses cls which is for class methods. def greet(self, cls):
print('Hello') has extra parameter cls unnecessarily.
Final Answer:
def greet(self):
print('Hello') -> Option B
Quick Check:
Instance methods always include self as first parameter [OK]

Quick Trick: Instance methods always start with self parameter [OK]

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Which of the following correctly defines a method named greet that uses self in a Python class?