I was playing around with a tutorial from a website. And wondering why the below code prints
Name : Gerhardt , Salary: 500
None
The first line I'm alright with. But I do not know why it prints None
?
class Employee:
'Common base class for all employees'
empCount = 0
def __init__(self, name, salary):
self.name = name
self.salary = salary
Employee.empCount += 1
def displayCount(self):
print ("Total Employee %d" % Employee.empCount)
def displayEmployee(self):
print ("Name : ", self.name, ", Salary: ", self.salary)
def changeSalary(self, n):
self.salary = n;
class ChiefEmployee(Employee):
def __init__(self, name, salary):
Employee.__init__(self, name, salary)
emp3 = ChiefEmployee("Gerhardt", 500)
print(emp3.displayEmployee())