Simple programm using __INIT__

CODE:

class circle:

        def __init__(self,pi):

            self.pi=pi

        def cal_area(self,radius):

            return self.pi*radius**2

c1=circle(3.14)

print(c1.cal_area(2))

OUTPUT:

12.56

CODE: wap to initialise th evalue of attribute s by making use of init method

class circle:

    pi=0

    radius=0

    def __init__(self):

        self.pi=3.14

        self.radius=5

    def cal_area(self):

        print("radius",self.radius)

        return self.pi*self.radius**2

c1=circle()

print("the area of circle is ",c1.cal_area())

OUTPUT:

radius 5
the area of circle is  78.5

CODE:WRITE THE VOLUME OF A BOX

class Box:
    width=0
    height=0
    depth=0
    volume=0
    def __init__(self):
        self.width=5
        self.height=5
        self.depth=5
    def cal_vol(self):
        print("width =",self.width)
        print("height = ",self.height)
        print("depth = ",self.depth)
        return self.width*self.height*self.depth
B1=Box()
print("volume of a cube = ",B1.cal_vol())

OUTPUT:

width = 5
height =  5
depth =  5
volume of a cube 125