Python - Constructors and Object Initialization
Which of the following is the correct way to set a default value for the parameter
age in a Python class constructor?Which of the following is the correct way to set a default value for the parameter age in a Python class constructor?
easy📝 Syntax Q12 of Q15
Step-by-Step Solution
Solution:
Step 1: Recall Python syntax for default parameters
Default values are set by assigning a value in the parameter list, likeage=30.Step 2: Check each option
def __init__(self, age=30): uses correct syntax. def __init__(self, age): age=30 tries to assign inside the method header, which is invalid. def __init__(self, age): age == 30 uses comparison operator instead of assignment. def __init__(self, age:30): uses incorrect type hint syntax.Final Answer:
def __init__(self, age=30): -> Option DQuick Check:
Default parameter = param=value [OK]
Quick Trick: Default values go in the parameter list with = [OK]
Common Mistakes:
MISTAKES- Assigning default inside the method body
- Using == instead of = for defaults
- Confusing type hints with default values
Master "Constructors and Object Initialization" in Python
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Python Quizzes