Define the instance method inc_num_kids() for PersonInfo. inc_num_kids increments the member data num_kids. Sample output for the given program with one call to inc_num_kids(): Kids: 0 New baby, kids now: 1 Use Python, please.
Define the instance method inc_num_kids() for PersonInfo. inc_num_kids increments the member data num_kids. Sample output for the given program with one call to inc_num_kids(): Kids: 0 New baby, kids now: 1 Use Python, please.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
CHALLENGE ACTIVITY
10.3.2: Defining an instance method.
Define the instance method inc_num_kids() for PersonInfo. inc_num_kids increments the member data num_kids.
Sample output for the givenprogram with one call to inc_num_kids():
Sample output for the given
Kids: 0
New baby, kids now: 1
Use Python, please.

Transcribed Image Text:```python
class PersonInfo:
def __init__(self):
self.num_kids = 0
# FIXME: Write inc_num_kids(self)
''' Your solution goes here '''
person1 = PersonInfo()
print('Kids:', person1.num_kids)
person1.inc_num_kids()
print('New baby, kids now:', person1.num_kids)
```
### Explanation:
This Python script defines a class `PersonInfo` with a constructor (`__init__` method) that initializes an instance variable `num_kids` to 0.
- The comment `# FIXME: Write inc_num_kids(self)` indicates that you need to implement a method called `inc_num_kids` within the `PersonInfo` class. This method should increase the `num_kids` count by 1.
- After defining the class, an object `person1` is created from the `PersonInfo` class.
- The script prints the number of kids using the `print` function, initially showing 0.
- The `inc_num_kids()` method is called on `person1` to update the number of kids.
- Finally, it prints the updated number of kids, reflecting the addition of a new child.
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