Answer:
The answer to this question can be given as:
Program:
#define class.
class PersonInfo:
def __init__(self): #constructor
self.num_kids = 0
def inc_num_kids(self): #define function inc_num_kids()
self.num_kids = self.num_kids + 1
return self.num_kids #return value.
p= PersonInfo() # creating object
print('Kids:', p.num_kids) #print value
p.inc_num_kids() #call function
print('New baby, kids now:', p.num_kids) #print value
Output:
Kids: 0
New baby, kids now: 1
Explanation:
The description of the above python program as follows:
- In this program firstly we define the class that is PersonInfo. In this class we define the constructor that is def __init__() and one function that is def inc_num_kids().
- The constructor is called automatically when the class object is created. In this constructor, we use the self as a parameter that is used to access variables that belong to class.
- In the constructor, we define the variable that is "num_kids". We assign value to a variable that is "0" and use the self for holding reference to the variable.
- Then we define the function. In this function, we increment the value of the variable by 1 and return its value.
- Then we create a class object that is p and call the function and print its value.
