def __init__(self,argument,...,argument=value): Statements ----------
class circle:
def __init__(this,n=1):
this.__r=n
def area(this):
a=3.14*this.__r**2
print("Area is ",a)
a=circle(5)
a.area()
b=circle()
b.area()
Area is 78.5 Area is 3.14
class Time:
def __init__(self,h=0,m=0):
self.hours=h
self.mins=m
def display(self):
print(self.hours,":",self.mins)
a=Time(2,45)
b=Time(2)
c=Time()
a.display()
b.display()
c.display()
2:45 2:0 0:0