Python Ninja bootcamp 28-Q&A 4th

by SN Gurukul on November 21, 2018 in Basic Python

Learn Python like a Professional! Take You from 0 to Hero

In this Python lecture, we will learn about the Q&A fourth.

Answer the following Question-

Q. What are the four pillars of object-oriented programming?

Abstraction- Abstraction is a process of exposing an essential feature of an entity while hiding other irrelevant detail.
Encapsulation- Binding of Data and Methods together to keep them safe from outside interference is called Encapsulation. Remember, Encapsulation is not data hiding, but Encapsulation leads to data hiding.
Inheritance- Inheritance is the process of creating a new class by using the features of the existing class. The new class is called is called Derived/ Sub/ Child class. The existing class is called Base/ Super/ Parent class.
Polymorphism- Polymorphism is the ability to redefine methods for derived classes.

Q. Write Program to construct a class cuboid with attributes length, width and height.

Also, create volume methods and surface area method to compute the volume and surface area of the cuboid.

class Cuboid:
    
    def __init__(self,length,breath,height):
        self.length = length
        self.breath = breath 
        self.height = height
        
    def volume(self):
        return self.length*self.breath*self.height
    
    def surface_area(self):
        return 2*(self.length*self.breath + self.breath*self.height + self.height*self.length)

ob1 = Cuboid(1,2,3)

print(ob1.volume())

>>6

print(ob1.surface_area())

>>22

Q.Write a function that accepts a number n and returns the factorial of n.

def factorial(n):
    fact=1
    for var in range(2,n+1):
        fact*=var
        
    return fact

factorial(5)

>> 120

Q. Write Program to construct a class line with attributes as a two X and Y tuple coordinate of the point. Also, define the distance method and slope method to calculate the distance and slope between them.

class Line:
    
    def __init__(self,coor1,coor2):
        self.coor1 = coor1
        self.coor2 = coor2
            
    def distance(self):
        x1,y1 = self.coor1
        x2,y2 = self.coor2
        return ((x1-x2)**2 + (y1-y2)**2)**0.5
    
    def slope(self):
        x1,y1 = self.coor1
        x2,y2 = self.coor2
        return (y2-y1)/(x2-x1)

ob2 = Line((1,2),(3,7))

ob2.distance()

>> 5.385164807134504

ob2.slope()

>> 2.5

EDITS ARE WELCOMED!!

In the next Blog, we will discuss Error & Exception handling.

https://sngurukuls247.blogspot.com/2018/11/python-ninja-bootcamp-29-error.html

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