Answer :
method object of 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 can be write as follows:
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
The program begins by defining the PersonInfo class. This class defines a constructor that def __init__() and a function that def inc_num_kids().
The constructor is called automatically when the class object is created. This constructor takes self as a parameter that is used to access variables belonging to the class.
In the constructor, define a variable 'num_kids'. Assign a value to a variable that is '0' and use self to keep a reference to the variable.
Then define the function. This function increments the value of the variable by 1 and returns the value.
Then create a class object that is p, call the function, and print its value.
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